In a world where men are under Curfew after dark, two detectives hunt a killer.

Disobeying orders, Pamela investigates the men in Helen's life.

Pamela and Eddie find the site of Helen's murder and Billy's secret is revealed.

One evening during Curfew a week before the murder, Helen is harassed online.

Pamela is shaken by new evidence the killer is a woman and Cass crosses a line.

The truth is finally revealed during a tense stand-off with the highest stakes.