Mrs. Ormsby Parr, a scheming society woman who has buried three husbands, hopes to arrange a marriage between her stepdaughter and Billy Morrow. She arranges for Billy's father to take them on a cruise to Europe. Off the coast of France, Billy learns of the scheme and makes for shore with his newfound friend, Red, an ex--taxi driver. In Paris they encounter artist Gaston Picard, who is bethrothed to the Countess Stoll but nevertheless is in love with his American model, Renée Darcourt. Billy and Renée fall in love, but he comes to doubt her intentions because of her profession and his suspicion of Picard. War breaks out, and he joins the Foreign Legion. He is wounded and taken to a hospital where Renée is a nurse. Their doubts and jealousies vanish and all ends happily.