What do you want? Ben Cassidy has strict instructions from his mother Cass: he must never go back to Darnshaw, his childhood home. Then an old friend dies unexpectedly, and he breaks this promise to attend her funeral.
But Jessica died because of a game, Acheron. It promises to grant your deepest desire - for a price.
Friendship. A finger. A murder. Your Soul. Acheron; Would you?