The Door with Seven Locks is a 1940 British horror film directed by Norman Lee and starring Leslie Banks and Lili Palmer.

[1] The screenplay was by John Argyle, Gilbert Gunn and Norman Lee based on the 1926 novel The Door with Seven Locks by Edgar Wallace.

A series of mysterious events causes the keys to be scattered, and when trying to unravel the circumstances, the heiress of the fortune and her companion investigators become entangled in a web of fraud, deceit, torture, and murder.

The Monthly Film Bulletin wrote: "Good direction and better acting conceal the flaws in this improbable story, and the result is a picture with suspense, thrills and a welcome leavening of humour.

Leslie Banks is a gruesome villain, Lilli Palmer is a refreshingly 'different' heroine and Romilly Lunge sufficiently impetuous as the young detective.