Another pointer from Roger Ebert, and a jag along Henri-Georges Clouzot's output from The Wages of Fear. Black-and-white, 1955. It's a bit like Laura in that murder never quite runs on time. The twists are fun when they come, though there is some significant lag in the middle. Uptight Vera Clouzot is definitely more fun than Frenchy Marilyn Simone Signoret.
Bosley Crowther back in the day.