The exploits a team of people whose job is to investigate the unusual, the strange and the extraterrestrial.

Dougie Molloy is a widower, whose daughter disappeared three years ago. At the time, he was suspected of murdering her. Three years later, Dougie falls in love with divorcee Maggie Shields but has a difficult relationship with her daughter, Scarlett. The day after the couple get married, Scarlett disappears, and Dougie is again the prime suspect.