Already Dead is a 2008 drama film directed by Joe Otting and starring Ron Eldard and Christopher Plummer.
Thomas Archer (Ron Eldard), a disconsolate man, is led to an underground room by a distorted male voice on his mobile phone.
In flashback it is shown that his wife had been attacked and his son killed for no apparent reason.
Without any proof he accepts everything he is told and proceeds to torture the man with various implements found in the room.
It is revealed in flashback that his Doctor (Christopher Plummer) had made Archer an offer to get the revenge he needs.