The quiet of the small Scottish town shattered with a murder, leaving the community reeling in disbelief. Local detective Annie Redford finds herself unexpectedly at the center of the investigation, facing her first case of homicide.

The discovery of a human heart on the loch's shore prompted the inclusion of forensic psychologist Blake Albrighton in the investigation.

Authorities are appealing to the public for information regarding the whereabouts of Jonjo. Concern is heightened by the knowledge that Jonjo lives with bipolar disorder and has recently discontinued his medication.

The deeper Annie delved into the investigation, the more isolated Alan felt, and a strain began to develop between them.

Marr remained a person of interest, and when a search warrant led to a thorough examination of his home and belongings, he finally succumbed to a sudden impulse, turning his attention toward Evie.

Even with the threat of arrest hanging over him from Quigley, Albrighton remained consumed by the details. As he prepared to depart, a sound reached him, a subtle shift that suddenly illuminated the entire case. Unable to confront Quigley d…