After a drunk reports seeing a weird creature in the river a number of people disappear. Investgators searching for illegal traps find that it is a giant monster that has devoured the missing people.

This is a classic of the B-Movie Sci Fi genre. Produced by Gene Corman and Directed by Bernard Kowalski

THE MONSTER WALKS (1932) Mischa Auer - Rex Lease

This 'Old Dark House' mystery in the vein of "The Cat And The Canary" tells the story of a scientist who dies and leaves his estate to his daughter. The estate will be divided amongst his other relatives if she doesn't live past a certain time. There is a plot to kill her, complicated by the 'ape' that the scientist performed experiments on.

Directed by Frank R Strayer (Vampire Bat, Condemned to Live, Murder at Midnight, etc.)