When crabby Vince Ogden is found dead in his locked bedsit, it's up to Mackenzie to shine a light on the truth of his murder.

Three hairdressers return from lunch to find their boss, Bianca Bailey, has been killed. The method is strangulation, but the murder weapon remains a mystery that Mackenzie is determined to untangle.

When Colin’s friends visit from England, one of them wakes up to find a stranger’s corpse in his locked motel room, with no sign of how the killer got out.

A tense game of lawn bowls turns to chaos when a player is killed on the green in broad daylight by an antique ornamental bushranger's gun. Is the ghost of Bushranger Bill haunting Dolphin Cove?

A crime writer is found stabbed to death in his villa after announcing his controversial comeback book at a literary festival, but all of the suspects were on stage at the time of the murder.

When a radical eco-activist is murdered, Mackenzie and her team must figure out how the victim was killed when the suspects were chained together, unable to reach the victim.

A rock star is murdered in a locked theatre, forcing Mack to uncover the truth hidden in the band’s decades-old history.

A CEO is poisoned during a spiritual ceremony at a corporate retreat, but the killer’s method defies explanation.