Confessions of Boston Blackie is a 1941 American mystery crime film directed by Edward Dmytryk and starring Chester Morris, Harriet Hilliard and Richard Lane.

[1] A woman consigns a family heirloom to a pair of unscrupulous art dealers in order to raise money to help her sick brother.

Joe Buchanan, one of the art dealers handling the auction, asks her to stay away, claiming that an emotional attachment to the work might cause her to make a scene.

When Police Inspector Farraday arrives, he automatically assumes that Blackie is guilty and takes him into custody.

When he learns why she needs the money so badly, he arranges for his assistant, the "Runt", to masquerade as an insurance adjuster to give her $6000 he borrowed from Manleder.

In the ensuing gunfight, Buchanan is killed, but the shots destroy the electrical circuits controlling the only way in, trapping them all in the soundproof chamber.