Murder

A young woman lies dead in a Nottingham flat. Her terrified sister is barricaded in the bathroom. A young man in a bloodstained shirt is pulled over for speeding. It's 2am and the three of them only met at noon. What happened in those fatal hours?

Leo Durridge stands accused of murdering his brother-in-law Rafe Carey. The action takes place around Peebles and on the banks of the Tweed, where Durridge claims Carey was swept away by powerful currents in the river following a storm.

Set in London's moneyed Belgravia, where wayward aristocrat Dominic Cotterall is besieged by accusations that he's murdered his girlfriend, Arla Beckman, who's been missing for several days. Dominic is determined to disprove the slurs against him, but colleague Bryony Phelps is convinced he killed her, and won't rest until she's got to the truth

This episode covers a single night, and events occur almost entirely within the locked cells of a prison and a youth offender institution. Ten years ago, three men were convicted of the murder of PC Stuart Prescott in the presence of his seven-year-old daughter, Jess. Now 17, Jess has ended up behind bars herself.