Le diable à trois

Peculiar thriller begins quite promisingly, but takes a curious, dispiriting turn somewhere along the way and never recoups its glory. Upscale New York couple James Caan and Katharine Ross--who enjoy warped versions of penny-arcade games and mischievous pranks--invite fragile saleswoman Simone Signoret to stay with them, which culminates in a crime. Director Curtis Harrington, who was also involved with the script, sets up an initially delicious puzzle involving the decadent rich, but allows the intricacies of the character-development to unravel in the second act. Caan and Ross appear to be very much in love--and Ross herself seems to be a pretty smart cookie--rendering a plot-twist late in the proceedings unconvincing. William Fraker's cinematography is stylish, though the action rarely ventures outdoors and one becomes acutely aware of the low-budget underpinnings (the film also has a mysteriously European feel, causing the alleged New York location to seem irrelevant--and a mismatch with the material). Good acting only takes it so far. **1/2 from ****