When an outcast cop receives a lead to the location of a notorious assassin, he sets out to find him but walks directly into a trap. Beat up and knocked out, he wakes up in Breakdown Forest, the most dangerous place on earth; a large-scale battle arena in the wilderness. It’s a fight to the death and only the strongest will survive.

Having just arrived in Vienna, eight-year-old Tao is forced to watch as two men murder his relatives in their Chinese restaurant. The killers catch him too, but the boy manages to escape. When Ester, who has recently gone blind, crosses his path, he follows her into her apartment. Unfortunately, the strange woman doesn't understand his excitement. Meanwhile, LKA officers Decker and Kriesch take over the murder case. Not at all reassuring for the witness, because the two killers and the two officers are one and the same person...