A group of men trap wild animals in Africa and sell them to zoos. Will the arrival of a female wildlife photographer change their ways?

In Victorian era London, the inhabitants of a family home with rented rooms upstairs fear the new lodger is Jack the Ripper.

Ten people are invited for a weekend on an island by a mysterious stranger, but it turns out he isn’t present. At dinner a record is played which accuses each one of the guests of having committed a murder. They soon begin to realize a crazed killer is stalking them.