When a phone with a brutal drowning recorded on it is handed in to MHU headquarters, the pressure is on for Annika and the team to track down the murderer.

The MHU are sent to Edinburgh to investigate the death of a recently released prisoner whose body is pulled out of the Forth River, imprisoned in a dog cage.

Annika reflects on Jekyll and Hyde as she and the team investigate a millionaire found dead in his own shark tank.

A blind actress is the only witness to her husband’s murder. But with no evidence that there was anyone else there at the time, can her version of events be…