After the death of a friend of his, a young musician, Chris moves into the deceased's apartment to compose a song in his memory. He later meets a charming woman, Eva who has a dual relationship with her senator husband and her stepson. Having become her lover, the musician is instigated to kill the two intruders, of whom she is allegedly a victim. Although unconvinced, he decides to indulge her, but finally discovers that it was she who killed the two, trying to put the blame on him and that she is also responsible for the death of his friend, who had refused to follow her in the criminal project.