In The Next Room is a 1930 American pre-Code mystery film released by First National Pictures, a subsidiary of Warner Bros. and directed by Edward F.

[2] The film was based on the play of the same title by Eleanor Belmont and Harriet Ford, which itself was derived from the book The Mystery of the Boule Cabinet by Burton E.

Vantine moves in with his daughter Lorna and maid and retains the elderly butler to help take care of the house.

As Godfrey is helping Lorna to open the antique cabinet, they find a hypnotized woman inside.

Meanwhile, the hypnotized girl appears in a revived state and reveals that her partner, a diamond smuggler, has been murdered with poison.