In an unidentified gloomy town, with urban decay and dismal weather, the experienced Detective Paul S. Saunders is partnered up with a less experienced and ill-tempered Detective Callum Brown, who recently transferred to the department.
Their investigation was to find a killer who murdered a man recently, showing the whole murder on CCTV camera. This unknown man wore a dark hood the night of the murder and a mask to cover his facial features. The detectives knew there was something going on here since the murderer knew he had committed the murder on tape, therefore leading the two detectives to thinking that this might be one of many.
The victim of that night was an innocent civilian named George Sandell, his family strongly believed that no one had a grudge on George and couldn’t believe why anyone would do such a thing. This lead to another murder case the following night, exactly the same time, exactly the same costume and once again the whole murder caught on camera. This was now a case of a serial killer and became much more serious for more people could be in danger. Another similarity between the two murders was that once again it was another innocent civilian who was murdered.
Impatience began to occur from Detective Brown leading to fierce arguments between himself and Detective Saunders, the morale of the team was no good at this stage as they did everything they could to find this serial killer but couldn’t find anything.
After long work on this case and 5 total murders, all on CCTV camera, all at the same time every night and all on innocent and random civilians, a note was left behind by the killer after the 6th; it read ‘Remember Jane Scott, Saunders? Remember what you did to her?’ Instantly after reading this message Detective Saunders had a flash back. 6 years ago when Saunders was younger with less experienced he was called upon a mission to shoot a man who was robbing a bank and had a woman hostage. This woman’s name was Jane Scott, she was completely innocent, and in an attempt to try and shoot the robber, Saunders missed and hit the innocent Jane in the head. Saunders himself decided to notify her husband one to one that he had miss fired and accidently shot his wife.
6 years later, Saunders is now by no means coincidently on a case where a man seems to be planting revenge on him by killing innocent people. After reflecting on this he decides not to tell his partner detective brown about his history, and tries to investigate this personal case on his own when he is alone. Brown still asks him questions on what that note meant, but Saunders simply tells him he doesn’t understand it. Brown becomes impatient with Saunders’ reluctance to say what that note meant leaving him no choice but to take him off the case through disobedience to instructions and emotional attachment to the case itself, which could lead to a disaster. Despite being taken off the case, Saunders carries on and tries to find this man. As murders keep on coming, Brown can’t handle it and sends out a warning to the public.
Saunders finally speaks to him on the phone and is now certain that it is Jane’s husband. Jane’s Husband (Harrison Scott) tells him that for years he has dreamt of killing Saunders for what he did, and now he decided that he was going to kill as many innocent people as he can as revenge for what he did, “My wife was as innocent as everyone I have killed, so if she has to die then why should everyone else live… I’m going to kill you sanders, I’m going to make you beg for mercy”. Saunders now knows it’s personal, therefore giving himself up as a sacrifice to save the innocent people. They organize a meeting place, and Harrison strictly demands no police.
Saunders arrives there, and it is a rundown building, with pictures pinned to the wall of all of those he has killed and is going to kill, including Saunders himself. Then Harrison appears, takes off his mask and reveals his face. As they chat for prolonged periods of time Saunders tries to talk some sense in to him, but it doesn’t work and soon Harrison begins the torturing period.
Brown and the crew try to contact Saunders in desperate need for his help, but no answer, Brown is then suspicious something is going on, therefore him and the team go to Saunders’ house, but there is no sign of him. As they search for clues, eventually they find an address written down by the phone. Brown knew then that Saunders was in trouble and Saunders had put the address there purposely.
A swat team is rounded up to go to this address. And as the swat team arrive Harrison hears them and panics, accusing Saunders of bringing a team. Saunders tries to calm him, but when the swat team enter the building Harrison shoots Saunders in the head, just like Saunders shot his wife in the head. Almost immediately afterwards the swat team shoot down Harrison.
The film ends with a zooming in close up of Saunders’ picture on the wall, with text on it reading ‘AN EYE FOR AN EYE’, clearly showing that this whole time Harrison Scott was planning to get his revenge on Detective Saunders for taking his wife away from him.