Professor of behavioural science Alec Mercer is called upon to investigate the murder of a fashion influencer whose boyfriend, a decorated soldier and son of a Senator, has confessed to the crime.

Alec is approached by his old friend CJ, a prominent investigative journalist, who asks for his help after she is poisoned with a rare and deadly nerve agent.

Alec and the team take on a kidnapping case at the request of a desperate father. Their investigation is hampered by a complicated family dynamic that slowly reveals everyone’s hidden motivations.

Alec and the team head to Las Vegas to help Camille, a former colleague turned expert poker player who’s been lured into danger.

Alec agrees to testify as an expert witness in a wrongful death trial for a friend of Kylie’s. As he faces an old nemesis, he discovers competing emotions around an accidental shooting.