Eccentric scientist Harper lives in a spooky mansion with all the trimmings: hidden lab, secret panels, inscrutable butler, and greedy relatives with unusual talents. When Harper seems to be murdered, Charlie Chan (with the uninvited help of No. 4 son) tries to answer such questions as Where's the body? How can a dead man walk? And how can a secret murder be done in full view of detectives and witnesses?—Rod Crawford
independent film, secret formula, small town sheriff, ventriloquist dummy, whodunit, dictaphone, intercom, suitcase, impersonating a police officer, secret door, racial stereotype, accomplice, autopsy, black stereotype, coroner, espionage, laboratory, motorcycle cop, mute, poison dart
The Jade Mask is another highly enjoyable Charlie Chan entry from Monogram Pictures--Spooky Atmosphere!!
1. Amazon Video : Rent from $1.99, Or $0.00 with a Prime membership