Wolf is a war veteran who recounts the tale of his legendary youth to a young upstart killer. Flashback to a post-World War 2 time when the young Wolf is wandering the Chinese countryside in search of his missing memories. He only knows to meet someone at an abandoned temple. He ends up hooking up with a local villager, who intends to guide the Wolf to his destination. On the way, they find Wai-Yee, who’s been waiting for Wolf for quite some time. However, Wolf still can’t remember anything, until the bad guys come to find him, and they bear the terrible secret of the Wolf's past.

In a mysterious forest in Thailand, many suicidal youths disappear and rescue teams can not find the way out even with compass. The ambitious reporter May is making sensationalist journalism exploring the deaths in the forest. Her boyfriend and botanist Shun Shu-hoi is developing a means of communication with plants. Meanwhile, Detective C. C. Ha is investigating the rape and death of a woman and the main suspect is Patrick Wong.