The Beast Must Die (1974)

This is an Amicus horror mystery about a wealthy dude who collects a group of suspected werewolves into his secluded mansion so he can narrow down which one of them is the real deal.

When the movie begins, it narrates that it is a detective movie and prompts you to make your guess in this whodunnit. Towards the end, it gives a brief intermission to ask you to make your final guess, and I actually narrowed it down, but I didn't pinpoint who until it became blatantly obvious.

The cast is pretty good. Our lead is some black dude with a variety of outfit choices, one of which is an uncomfortable one-piece leather suit that seemed pretty random to me. Then, you have Peter Cushing as the werewolf expert, Charles Gray (Rocky Horror's criminologist), our lead's girlfriend/assistant, a big red herring Paul Foote, a beautiful dame named Davina, and finally... Dumbledore himself Michael Gambon as Jan the man with the stache.

I was a bit disappointed that the werewolf wasn't a special effects deal, but simply a big fucking dog. Either way, it was an okay movie with a seriously dated 70s score. Not too bad. If you saw it... did you guess who it was?