Jules and Nic are in a long-term committed lesbian relationship, and each has a child fathered by the same anonymous sperm donor. Nic’s daughter, Joni, is eighteen and about to go off to college. She has a platonic boyfriend, Jai, but her high school girl friend, Sasha, urges her to have sex with the boy. Joni’s brother, Laser, is a few years younger, and is curious about his biological father. He persuades his sister to contact the sperm bank to connect with him. Nic, a doctor, is the more successful of their parents, and the more controlling. Through the years, Jules has tried to work outside the home and made several failed attempts to establish various businesses. Currently, she has bought a pick-up truck for her new landscape gardening business. Nic expresses concern for her partner’s new venture, and also lectures Jules on allowing the loose hair from her hairbrush to clog up the bathroom sink. She questions Laser’s association with his high school friend, Clay, and is concerned that he might be homosexual. Meanwhile, as he finishes working in his garden, a man named Paul receives a call from the sperm bank, asking if he would mind being contacted by his biological daughter. Paul agrees to be contacted, then goes to the restaurant he owns and tells Tanya, his hostess and current girl friend, the news. Later, Joni receives a phone call from Paul, who is told by Joni that he also has a son. They arrange to meet at Paul’s restaurant, and have a rather awkward first encounter, but agree to meet again. However, Joni insists that her brother not tell their parents of the meeting. Soon after, with his parents away, Laser and Clay explore the women’s bedroom and find a pornographic videotape featuring gay male sex. They start to play it, but Jules comes home and discovers them watching the video, adding more fuel to the concern that Laser might be gay. In the ensuing lecture he receives from his two moms, Laser is chastised for going through his parents’ room, but also told that they are open-minded and asked if he has any questions. He asks why two lesbians would want to watch "gay man porn"? Somewhat embarrassed, Jules ties to explain that human sexuality is complicated, and that films featuring men show an "externalized" sexual response. Nic is less interested in explaining herself than she is in knowing whether Laser has some sort of relationship. Misunderstanding, Laser blurts out that the kids have contacted their father, and when he realizes that this is not what Nic was asking about, he asks if she thought he was gay. Learning about Paul, Nic insists that they invite him over for dinner. Upon meeting him, Nic seems disappointed that Paul is in the food service industry. When she read his profile at the sperm bank years ago she recalled that he was studying foreign relations. It is also revealed that Nic and Jules met when Nic was a resident at the University of California Los Angeles (UCLA), and Jules had come in as a patient. Jules mentions that she wants to start a landscaping business, and Paul offers her a job to make over his garden. After he leaves, Nic tells Jules she doesn’t like the idea of her working for their sperm donor, but Jules takes this as yet another attempt by Nic to keep her at home and dependent. As she works with Paul in his garden and gets to know him, Jules notices how her kids take after him. Laser develops a bond with Paul, too, but Clay resents the sperm-donor’s intrusion into their friendship. Paul shares the concerns of Nic and Jules that Clay is not an appropriate companion for Laser. When Nic comes home to apologize to Jules for her recent behavior, she attempts to make up by drawing a warm bath for her partner; but when she leaves the bathroom to get some lavender salts and does not return, Jules become anxious. She gets out of the tub to look for Nic and discovers her drinking wine and on the phone with one of her patients. Then, when Jules unveils her plans for the garden to Paul, he does not respond right away, and she is devastated again. He assures her he was not disapproving, but merely being reflective. Jules reveals that she sometimes mistakes silence for criticism. She aggressively kisses Paul, but then backs off and acts contrite. One day, as Clay expresses his disdain for Paul to Laser, a dog comes up to the boys in an alley. Clay wants to piss on the dog’s head, and starts unzipping his fly. Laser protests, and Clay hits him in the face. Joni begins to develop a closer connection with her father and works with him in his garden; however, when he gives her a ride home on his motorcycle, Nic gives Joni and Paul a tongue lashing. Based on her experience as a doctor seeing accident victims, Nic has forbidden Joni to ride on motorbikes, but the girl protests that she is eighteen and ought to be able to make her own decisions. Nic counters that as long as Joni lives at home she will follow the house rules. The next day, while working at Paul’s, Jules apologizes for Nic’s outburst and for her own attempt to kiss him—but she can’t help herself and ends up having sex with Paul. That evening at dinner with friends, Nic goes off on Jules about current food and environmental fads and storms away from the table, but later lets slip that she feels Paul is taking over her family. Nic is unaware just how true this is, as Jules and Paul continue their passionate daytime affair. When Nic proposes that the entire family have dinner at Paul’s house so she can see the progress Jules is making in the garden, Jules tells her that she’s really just getting started. Jules speeds up her efforts to make the garden presentable, and tells Paul that she cannot continue their affair—but again they end up in bed, and Paul tells Jules he thinks he’s falling for her. Sometime later, Tanya tells Paul that she misses him. Paul upsets her by saying he is ready to settle down with someone who is more serious about commitment. Later, the family finally gathers at Paul’s for dinner. Nic looks over the garden and tells Jules that she is proud of her accomplishment; she also discovers that Paul has a fondness for Joni Mitchell, and tells Paul that her daughter was named after the singer. Nic and Paul seem to hit it off finally, but when she goes to the bathroom, she discovers Jules’s hair on a hairbrush and in the drain, and immediately suspects that Jules and Paul are having an affair. At home, Nic confronts Jules, who admits to the affair and argues she just needed to feel appreciated. When Nic leaves the room, she discovers the kids have been eavesdropping outside the door. Banished to the living room couch, Jules tries to explain herself to Joni, but the girl won’t speak to her. Jules then tells Laser that her relationship with Paul is over. Joni cannot forgive Paul for breaking up the family. Sometime later, at a party with friends, Joni sees Jai talking to another girl. Sasha urges Joni to make a move on Jai. Joni goes over to him, interrupts his conversation and drags him off with her. She starts kissing him, but pulls away after Jai responds, and leaves the party. When Joni returns home, Jules and Nic are concerned that she is drunk. The girl complains that she is sick of both of them. During Joni’s last dinner at home, Paul attempts to see her and re-establish a bond. She tells him, “I wish you could have been better.” Nic calls Paul an interloper, and says that if he wants a family he should go make one of his own. Later that evening, Joni, Laser, and Nic are watching a movie on television. Still cast out of the family circle, Jules grabs the remote, shuts off the TV and says she has something to say. She tells them that marriage is hard, that couples are together for so long that they stop seeing the other person, and that sometimes you hurt the ones you love the most. She says she is sorry and hopes they will forgive her. The next day, Jules, Laser, and Nic take Joni to her new college dorm room. In the back seat on the ride home, Laser tells his parents that he doesn’t think they should break up. When asked why, he says that he thinks they’re too old. Not exactly thrilled with Laser’s response, nevertheless, Jules and Nic hold hands as they continue toward home.