Whist detective sergeant Annie Redford and husband Alan are at a curling match their daughter Evie and her friends Jonjo and Kieran create a hoax construction of the Loch Ness monster to boost Alan's business taking tourists round the Loch. Annie is called in to investigate but finds herself on her first murder case after college lecturer Craig Petrie finds the corpse of gay piano teacher Niall Swift, his brain having been removed. To the annoyance of Annie's superior Frank Smillie DCI Lauren Quigley is brought from Glasgow, along with forensic psychologist Blake Albrighton. When a human heart is found in Evie's fake monster, of which the youngsters deny all knowledge of seeing, Blake believes a serial killer is at work. However Annie is compromised by Evie's actions and taken off the case. Written by don @ minifie-1

Lauren orders interviews with Niall's pupils whilst a phone, possibly the victim's, is thrown into the loch. Lauren's key suspect is Leighton Thomas, on life licence for a 20 year old murder but she also believes Craig is hiding something. A dead wolf , released from its sanctuary by Jonjo, is found at his father's abattoir, increasing animosity between Lauren, who orders its closure, and Frank whilst Annie learns that unpleasant doctor Simon Marr, who sacked Niall for being gay, owns to running it over and asking for its incineration at the abattoir. Annie impresses Blake when she finds brain fragments and he persuades Lauren to reinstate her though the brain is not Niall's. Lauren believes she has found a clue to the killer's identity in a newspaper left next to Niall's corpse. Meanwhile Evie and Kieran are run off the road by a mysterious driver and Jonjo goes missing. Written by don @ minifie-1