![Out of the Past (1947) Out of the Past (1947)](http://image.tmdb.org/t/p/w185/lnUK6Cg5ARM0qaq0B5SG20VAM0h.jpg)
![WΔZ (2007)](http://image.tmdb.org/t/p/w300/bf11TuyZCWUnSDaGxsmq4jBrmwx.jpg)
Overview
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.