So you are trapped in a dark warehouse and you know that one of your group members is the notorious Jack the Ripper, you just don't know which one. The closest thing you can grab to protect yourself is from the bag of scavenger hunt items that your group has collected. Using these items, the partygoers try to find out who is Jack and destroy him before he destroys all of them.
If Jack can murder all of the partygoers before they murder him, Jack the Ripper wins the hunt and prowls on in infamy. If Jack falls first, then the remaining partygoers share in the victory and become the heroes of Whitechapel. But would be heroes beware, Jack has some tricks up his sleeve to help take you out.

This is a card game of deception, confusion, and chaos. Jack the Ripper mixes the interplay of party games like Werewolf and Mafia, the psychology of games like poker, and the action of games like your favourite collectable card game. On top of that, we fit all of this into a primer game that takes fifteen minutes or less to play!