![MK Ultra](https://image.tmdb.org/t/p/w185/x3G3CCvLYy4EoLuhuUB9YlReFIN.jpg)
In honor of his birthday, San Francisco banker Nicholas Van Orton, a financial genius and a cold-hearted loner, receives an unusual present from his younger brother, Conrad: a gift certificate to play a unique kind of game. In nary a nanosecond, Nicholas finds himself consumed by a dangerous set of ever-changing rules, unable to distinguish where the charade ends and reality begins.