Bait is a 1950 British crime film directed, produced and co-written by Frank Richardson from his own stage play.

[3] This British mystery concerns a gang of four jewel thieves, led by Diana Napier, who steal two highly valuable diamonds out of a set of earrings.

Bentley wants to claim his half of the inheritance, but soon discovers that his half-brother has squandered the family fortune and is now engaged in buying and selling stolen gems.

[4] The Monthly Film Bulletin wrote: "Amateurish melodrama; lack of continuity and erratic editing make this very shoddy British quota.

"[5] Hal Erickson writing for AllMovie, noted that: "ladylike Diana Napier is unexpectedly coarse as the female gang boss in Bait."