Robbie Coltrane examines the horrific crimes of Dennis Smalley and the tiny clue that led to his capture and conviction.

In 2010, Suzanne Pilley disappeared on her way to work in Edinburgh. Here, Robbie Coltrane reveals the remarkable way her killer was caught.

On 12th May 2014 a human torso was discovered in a suitcase during routine maintenance work on a Birmingham canal.

Dead Man's Hollow: Nishan Bakunts: Robbie Coltrane examines the most complex and baffling murder cases ever to be investigated by British police, starting in Great Yarmouth.

When a Devonshire fisherman hauled in his nets on July 28 1996, he made a gruesome discovery: among that day's catch was a dead body.

In mid-November 1993, Derek Severs and his wife Eileen disappeared without a word.

In the summer of 1993 a serial killer stalked London.

Robbie Coltrane examines why Graham Backhouse attempted to kill his wife with a car bomb before murdering his neighbour in 1984.

A 29 year old hairdresser was found brutally stabbed on her doorstep in a quiet suburban street of London.

In March 1984 Hilda Murrell, a 78-year-old distinguished rose-grower, was found dead in woodland near her home town of Shrewsbury.

In 1984 a parcel bomb was sent to a 53 year old grandmother living in a tranquil English village.

Robbie Coltrane examines the case of the murder of a marketing manager on Christmas Eve 2014 using chloroform.

Detective Chuck Ray is called to a scene where one man has been shot in the hand while another man lies dying outside of his apartment with a gunshot wound to the abdomen.

Robbie Coltrane examines how DNA evidence ended a 30-year hunt for triple murderer and rapist in Wales.

Robbie Coltrane examines the harrowing case of a London landlord who sadistically tortured and murdered two of his tenants.

Robbie Coltrane examines the murder of a 17-year-old girl who was lured to a bogus job interview.