Did you ever see the 1985 film adaptation of Cluedo? It was released under the board game's American title, Clue, and starred Tim Curry, Christopher Lloyd, Colleen Camp and a few other folk who you'd probably recognise if you saw them again. Although it's dripping with cheese, it was pretty great at the time and featured three different endings in which various members of the cast all apparently committed the murder.
Alternate Endings brings us the same concept, mixed with elements of a choose-your-own-adventure book. The game is a series of videos featuring a live cast, carefully tied together to form a refreshingly comedic murder mystery.