Mark of a Killer

Mark of a Killer

Available on iTunes, USA, E!, Oxygen, Bravo, Syfy, Telemundo, Hulu, NBC
Killer Caller S2, E1: Twin Cities, MN, police are hunting for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness. No one can identify him until one woman survives a brutal attack.