When the body of ex-teacher Geraint Ellis is discovered in a house on a run-down estate in Blaenau Ffestiniog, DCI Cadi John (Siân Reese-Williams) and DS Owen Vaughan (Siôn Alun Davies) are called to investigate.
Whilst informing the victim’s daughter of her father’s death, DCI John senses she is withholding information. Rumours about the victim – and the reasons for his sudden and unexpected retirement – soon emerge.
As the investigation continues, DS Vaughan discovers that local youths on the estate had targeted Ellis. Is he a solitary figure targeted for previous sins, or an innocent man unjustly singled out by disaffected teenagers?
Amongst the many faces on the estate, we meet sixteen-year-old MIA (Annes Elwy), a young woman on the cusp of adulthood, a young woman at odds with her mother and the world around her. MIA’s life is split between school and hanging out with older cousin LEE (Siôn Eifion) and new friend CONNOR (Steffan Cennydd). Three young adults with a dark secret to hide.
As night falls, tensions grow between MIA and CONNOR as it emerges the police were alerted to the dead man’s whereabouts by an anonymous caller. MIA confronts CONNOR, demanding to know if he’s the one responsible for inviting the police onto the estate and into their lives.