After a woman disappears, an investigation identifies the likely culprit to be her boyfriend, but despite years of effort he receives only a light sentence. (S1 Ep 4)[S]
Soon after the corpses of two teens were found, a decades-spanning investigation begun, with officers labouring for years to bring the killers to justice. (S1 Ep3)[S]
A missing girl's parents insisted she had just run off with a boy, but detectives persisted and gradually unearthed a sick story of toxic family relationships. (S1 Ep2)[S]
After two young girls were killed, a mishandled prosecution ended in a murderer walking free until a later, more dedicated investigation brought him to justice. (S1 Ep 1)[S]