WΔZ (2007)

There is something horribly wrong with the bodies found in the dark city streets. Some are mutilated while others have the Price equation (wΔz = Cov (w,z) = βwzVz) carved into their flesh. Detective Eddie Argo and his new partner Helen Westcott unearth the meaning of the odd equation and realise each victim is being offered a gruesome choice: kill your loved ones, or be killed. Before long it becomes clear that the perpetrator has suffered a similar fate and is now coping by seeking a way to solve this philosophical dilemma.

Genres: Crime, Drama, Horror, Thriller

What to watch after WΔZ

• Hannibal Rising (2007) — Same subject: psychopath, revenge
• Pathology (2008) — Same feel: dark, disturbing
• The Children (2008) — Tom Shankland directed both
• Death Line (1972) — Same feel: dark, disturbing
• Kill Theory (2009) — Same subject: psychopath, torture
• Death Machine (1994)