Simon Morton examines the painstaking work of police and scientists who pieced together evidence to uncover the truth behind the death of an Auckland taxi driver and bring his killer to justice.

Detectives are left to determine whether something darker is at play when 15-year-old Maree Davis sends a text to a friend at 10pm and is never heard from again.

Police are called to a New Plymouth home after a bludgeoned body is discovered in a garage. Scientists and investigators work to identify the body, but is there enough evidence to solve the case?

Police are called when an abandoned car is found in Hamilton. The owner, a young mother, Carmen Thomas, hasn't been seen for days and her ex-partner, Brad Callaghan is concerned for her safety.

A mother frantically calls 111 after finding her daughter's body face-down on the floor, her throat cut. Now police have to work out if the killer was her stalker or her ex-boyfriend?