Photographer Chou Wai-ki encounters a robbery that causes him to lose three months of memory. He dreams of a girl watching someone killed by a knife, thinking that it is just a part of his memory. During the birthday celebration of his wife Ho Pui-chi, Chou and his friend Paul discover that Pui-chi is having an affair. Angry, he leaves home and meets the girl from his dreams, Wong Soh-ching, in Tai O. They fall in love, but Pui-chi cannot bear the loss of her husband and commits suicide. Unfortunately, this causes Chou's nightmares to come true.