Conventional Vicky, who is engaged to Doug, travels to Barcelona to spend her summer holidays at the home of their parent's friends, Judy and Mark Nash, with her unconventional and open-minded friend, Cristina. While in a restaurant, the divorced painter Juan Antonio Gonzalo flirts and invites them to travel to Oviedo with him, and also to go to bed with him. The reluctant Vicky does not accept the invitation but Cristina agrees. Once in Oviedo, Cristina develops an ulcer so Vicky goes sightseeing alone with Juan Antonio. Vicky eventually falls in love with Juan Antonio and has sex with him. However, back in Barcelona, she does not say anything to her friend and Cristina moves into Juan Antonio's house, while Vicky marries Doug. When the unstable former wife of Juan Antonio, Maria Elena, overdoses, the painter brings her to his house and their troubled relationship harmonizes with the presence of Cristina.