The Willing (2009)

Five strangers are invited to a secluded mansion for the reading of a will belonging to Lusiano Barrato, an eccentric billionaire they have never met. The strangers arrive only to discover that not only is Lusiano still alive, but he also reveals dark secrets about each one that no one else could possibly know. Kept there by the intrigue and ultimately lured by the promise of millions and the subsequent fulfillment of their deepest desires, the five strangers are faced with the dilemma of Lusiano's grand proposal: to claim their prize, one of them must die before dawn. How far are these strangers willing to go to satisfy Lusiano's sadistic desires and in turn fulfill their own dreams?