Plot
A writer investigating the execution of a serial killer known as "The Haymarket Strangler" 20 years previously begins to suspect that the wrong man might have been hanged. However, when he picks up a scalpel used by the murderer, he finds himself possessed by the killer's spirit and begins committing similar murders.
Where to watch Grip of the Strangler?
Grip of the Strangler is a crime movie featuring Boris Karloff.
Grip of the Strangler is currently streaming on Criterion Channel.
It is also possible to buy Grip of the Strangler on Amazon Video.