The Waxwork

Plot:

A writer must spend a night in a wax museum's murderers' gallery, to make good a gambling debt knowingly paid with a bad check to a testy Englishman. The museum's owner is so obsessed with the accuracy of his replicas, he's as scary as they are. Especially so to the magazine writer from the U.S., who's already facing deportation or a stretch in a London jail.