All ten episodes of the true crime documentary series exploring what happens when a missing persons enquiry becomes a murder investigation. Interviews with family and friends of the victims are featured. The episodes are: 'Helen McCourt', 'Lorraine Benson', 'Natalie Hemming', 'Wesley Neailey', 'Carole Packman', 'Danielle Jones', 'Shafilea Ahmed', 'Jayden Parkinson', 'Evelyn Lund' and 'Janet Muller'.