Or there's Cluedo on steroids (or possibly hallucinogens), known as Mystery at the Abbey; although you have a finite set of suspects (a set of monks with who's who like characteristics) you can steal cards, acquire extra cards, and at the end of every 3rd or 4th round you exchange an increasing number of cards with the person on your left. And when asked a question, you may either answer with a vow of silence, or answer honestly and ask any question in return which must also be answered honestly. It's a bit of a head bender to tell the truth, but I rather like it, and need to play it some more!