Love/Hate (2010)

S2E6 Episode 6

Nidge quickly seizes control and resumes the gang's operations as they were. Rosie comes to terms with the dark transformation of her partner, leading to a heartbreaking breakup with Darren, who is left shattered. In another turn of events, Mary uncovers the troubling depth of Luke's madness when she discovers him hiding in her room at night.