In this psychological thriller, Paul (James Caan) and Jennifer (Katherine Ross) are a pair of wealthy but blasé socialites with a sadistic streak. Lisa (Simone Signoret), an older woman from France, arrives at their door one day selling cosmetics; the couple invite her in, and when the conversation reveals that Lisa is believed to have psychic abilities, Paul and Jennifer ask her to arrange some "games" for their amusement. Lisa proceeds to set up several situations of simulated domestic discord that the couple can react to. The arrival of Norman (Don Stroud), a delivery boy, is Jennifer's cue to seduce him, just in time for Paul to arrive and shoot him in a fit of jealousy. Norman is then coated with plaster and placed in the corner, disguised as a work of art; however, Paul soon leaves on a business trip, and Jennifer discovers that Norman isn't dead after all. She panics and shoots Norman dead, only to discover that the previous murder was merely a "game" staged by Lisa. Jennifer, however, is having a very real nervous breakdown, which seems to be what Paul had in mind all along. But once Jennifer is committed to a mental hospital, Paul discovers that Lisa is not necessarily his ally in this increasingly dangerous game. was directed by Curtis Harrington, a one-time experimental filmmaker who previously helmed such horror cult movies as and .