For Reasons Unknown

Two murders. Twenty years. Now the killer is back for more…DCI Matilda Darke has returned to work after a nine month absence. A shadow of her former self, she is tasked with re-opening a cold case: the terrifyingly brutal murders of Miranda and Stefan Harkness. The only witness was their eleven-year-old son, Jonathan, who was too deeply traumatized to speak a word.Then a dead body is discovered, a...