Stylish, offbeat American variation on the classic French thriller DIABOLIQUE, which also featured Simone Signoret in the lead. Signoret is equally effective here, and a young James Caan and Katharine Ross are also impressive as the bewildered young couple whose seemingly mindless game-playing takes a deadly turn for the worse when the mystical Signoret enters their lives. Director Curtis Harrington(who also had a hand in the script) has added some exciting and effective new touches to this first-rate suspense tale.