Dark and moody serial killer film with a perspective from the killers' side of the story, Revenge: A Love Story is at times bloody, and at other times, touching and romantic.

Police are investigating a serial killer who targets pregnant women and the media have labeled him ‘The Dissector’ and run sensationalist headlines such as: "Pregnant woman dissected alive, husband put to death in 100 degree of boiling water".

At the scene of yet another such murder, and led by undercover detectives Jeff and Kwok Wah (Ching Siu Ho, Tony Ho) they comb the area and find a known suspect, Chan Kit, and bring him in. Chan Kit remains silent throughout the brutally physical interrogation and is released without charge.

If Chan Kit is not the killer, then who is? The story unfolds step by step, jumping with flashbacks as to how Chan Kit is linked to the group of undercover policeman in the first place and the pain he has silently endured; this is a story about unconditional love.