The series opens on Christmas Eve. The primary conflict is triggered by the arrest of , a prolific and clinical serial killer known as "The Alligator." Instead of being taken to a high-security police station, Simón is diverted to Baruca Hill Psychiatric Correctional Facility , a decision that immediately raises red flags for the prison director, Hugo Roca .
: Hugo's daughter, whose kidnapping serves as the "insurance policy" to ensure Simón stays inside the prison. La noche mas larga 1x1
: The calculated leader of the mercenary group. He is professional and ruthless, focused entirely on extracting Simón. The series opens on Christmas Eve