Following the report of two missing honeymooners, Ellis and Harper are called to the village of Brindleton. With the newlyweds' phones found at the edge of a dangerous stretch of river, the working theory becomes that of a cuddle-sleeping. But when a severed hand is found near the newlyweds' camper van, it becomes clear that the pair have met with foul play.
DCI Ellis, a tenacious cop, is parachuted into failing investigations alongside her partner DS Harper. Each case will bring her to a different police station where she'll have to not only immerse herself in the case, but also win over the local police.