Condemned: Criminal Origins

Ethan Thomas is an FBI agent assigned to the Serial Crime Unit (SCU) in the fictional city of Metro. Possessing the ability to sense a killer's actions, Thomas has the highest solve rate in the unit. However, many of his recent cases have gone cold. Meanwhile, he is convinced that the recent rise in serial killers is connected to a spike in crime, specifically assault amongst vagrants.
Arriving at the location of a homicide in a derelict building, Thomas is met by Det. Dickensen and Ofc. Becker of Metro PD. They conclude that the murder is the work of the "Match Maker", a killer that uses mannequins in his crimes. Realizing that someone else is in the building, they split up, but when Thomas loses his gun, a man takes it and holds him at gunpoint, saying, "we are both on the same path of righteousness." He then shoots and kills both Dickensen and Becker before pushing Thomas through a window.
Thomas wakes up in his apartment to find Malcolm Vanhorn, a family friend. Vanhorn warns Thomas that he is wanted for the deaths of the police and advises him to run. Assisted via phone by his colleague, Lt. Rosa, Thomas heads to a nearby metro station where he finds a room with a camera pointing at his apartment and a wall covered in newspapers, each one detailing a case Thomas worked, although many of the pages have a hand-drawn "X" on them. Finding evidence that the Match Maker is in an abandoned retail store, Thomas heads there.
In the store, he finds the Match Maker's body. Referring back to the newspapers, Rosa notes that all the articles with an X have gone cold, and she concludes that the man who took Thomas's gun is killing serial killers, hence why the cases went cold. She dubs him Serial Killer X (SKX). At the city library, Rosa reveals that she has found several anomalies in Thomas's personnel file - his bone density is abnormally high; he has an overactive serotonergic system; and there is a chest x-ray in which the vocal cords have been redacted. Meanwhile, Thomas begins to have visions of a man with metal implants in his body, most notably his mouth. Finding evidence that Serial Killer X may be operating out of an abandoned orchard, Thomas and Vanhorn head there.
As he explores the house, Thomas finds the Torturer's body. He takes SKX by surprise and seems poised to defeat him when he is attacked by Vanhorn. He hears Vanhorn refer to SKX as "Leland, nephew", pleading with him that he doesn't know his own mind, but Leland knocks Vanhorn out as Thomas faints. When he awakens, he is tied up and at the mercy of Leland, who brags about using Thomas to help him find victims. Vanhorn comes to and attacks Leland, allowing Thomas to escape. Vanhorn tells him that he must hunt down and kill the man with the implants as he is the cause of the violence in the city. As Thomas searches, he hears a voice telling him, "You belong to us, Ethan. You have always belonged to us." He eventually tracks down the man and kills him by ripping out his implants.
As Vanhorn drives Thomas home, Thomas discovers that Leland is alive in the trunk. Vanhorn explains, "he was a good boy. We were all good people. We were able to fight it back, most of us. My nephew was not as strong." Thomas pulls his gun on Leland, and the player is given the option of whether to shoot or not. If they do not, Leland pulls out his own gun and seemingly commits suicide. Sometime later, Thomas, now cleared of the deaths of Dickensen and Becker, meets Rosa. She explains that the FBI believes Leland was part of a cult and asks him if he knows anything about it. However, she tips him off that she is wired before he answers. Rosa leaves and Thomas goes to the bathroom. While there, he vomits and the implanted man is seen approaching him in the mirror. The man disappears, and Thomas spins around, showing that his mouth now bears the same implants.