While en route to Paris via train, commercial artist Gilda Farrell meets artist George Curtis and playwright Thomas Chambers, fellow Americans who share an apartment in the French capital. Gilda works for advertising executive Max Plunkett, who has had no success in his efforts to engage her in a romantic relationship. Tom and George each realize the other is in love with Gilda, and although they agree to forget her, they cannot resist her when she comes to visit. Unable to choose between the two, she proposes she live with them as a friend, muse, and critic—with the understanding they will not have sex.