New Year’s Eve, 2023. When Hannah and her friends rent a luxury yacht in an Italian marina, they party in style under the stars until they pass out. The next morning, they are horrified to find they have been cut adrift into the open ocean, with no sight of land and no fuel in the engine. And that’s when the first person goes missing.

Rachel and Rory Sullivan decide to celebrate making it through a tough year by taking their children, Emmet and Bridie, to their first stadium concert. By the end of the night, one of the four has vanished without a trace. As the police investigation intensifies, suspicion is cast on the remaining family members. Everyone has been deceiving one another, but who is to blame for what went wrong? The passing of each hour amplifies their terror that life will never be the same again.

DI Jan Talantire is called to a cottage in Ilfracombe, where the female occupant is found dead, impaled with a crucifix. The woman, who had been renting the house for a few months, is well known locally, but the documents at the house indicate her real name is Ruth Lyle. The name means nothing to the young PC who found her, DI Talantire knows this cannot be the body of Ruth Lyle.

Forest, North Carolina. Under the instruction of enigmatic Professor Joe Lyons, five graduate students are studying the tedious science behind the acts of lying. But discovering the secrets of deception isn't making any of the students more honest though. Instead, it's making it easier for them to guard their own secrets—and they all have something to hide. When a test goes awry and one of them is found dead, the students find themselves trapped by a snowstorm on an abandoned campus with a local detective on the case. 

Fresh from maternity leave, Detective Elma finds herself confronted with a complex case, when a man is found murdered in a holiday cottage in the depths of the Icelandic countryside - the victim of a frenzied knife attack, with a shocking message scrawled on the wall above him.