Former Detective Hillary Greene and her cold case team are handed an impossible case.

Thirty years ago, two days before Christmas, the much-loved Reverend Keith Coltrane was hit over the head and left to die inside his own church. The killer was never caught.

This shocking crime took place in the pretty Oxfordshire village of Lower Barton. Everyone knows everyone else in this peaceful little community. Who would have wanted to harm the young Reverend, who was handsome and popular - especially with the ladies of the village? No one has a bad word to say about him - apart from his younger sister.

Now, Hillary and her team of misfits are ready to find out the truth. They uncover old secrets, jealousies and long-standing feuds in the village. Secrets someone will kill to keep hidden.

Hillary is also hiding something - but she's finding it harder and harder to keep her own secret.

It's up to Hillary to uncover the shocking truth in this coldest of cold cases - before old crimes turn to new murder.