When Heaven Burns (2011)

In their youth Joe (Bowie Lam), Angus (Moses Chan), Ronnie (Kenny Wong) and Ka Ming are good friends and band mates. During a mountaineering trip, the four are stranded on a snow bound mountain and out of desperation Ka Ming is killed and eaten by the other three. This event has a traumatic effect on them, their friendship, and their friendship with Yan (Charmaine Sheh), Ka Ming's girl friend, leading the previously close group to go their separate ways. Eighteen years later, Yan remains haunted by the memory of Ka Ming, trying to regain what she had with him in part with her husband and and in part with her lover, but finding neither a complete replacement for her lost love breaks with them both. Troubled she loses track of time while alone in the wilderness, sparking a missing persons alert which becomes the catalyst for the four friends to meet again. Though she was Ka Ming's girlfriend all four band mates were in love with her and the three survivors remain in love with her.