After the death of a gangster, those familiar with his million dollar stash start mysteriously dying. Police detectives with the help of a clairvoyant try to determine who, living or dead, is responsible.
Acting
Warner Oland's deliciously shady doctor-psychic.
Production
Secret rooms and death masks in a proper spooky mansion.
Writing
Pre-Code snappiness before the Hays Code neutered Hollywood.

Director
Irving Pichel
Trivia, insights & behind the scenes
Warner Oland filmed this between his first two Charlie Chan movies, perfecting his 'mysterious Asian' typecasting that would define his career.
This is peak 'old dark house' cycle — Universal had essentially invented the template two years earlier, and everyone was copying the spooky-mansion-plus-secret-passage formula.