In Donal MacIntyre's Murder Files, the renowned undercover reporter and crime journalist examines the most horrific and fascinating crimes.

In-depth interviews by Donal with the individuals who were central to solving each case - from the detective on duty to the undercover agent to the forensic scientist – are the spine of each episode. Donal will expertly lead them through their story step by step, uncovering the dramatic twists and turns of each and every case. The stories will be illustrated by dramatic reconstruction of the case and archive, including police tapes and undercover evidence.

Through these intimate and probing interviews, Donal will also reveal the emotional side of law enforcement. What goes through the mind of someone working on a case? What are the personal and professional pressures? What does it take to solve a complex case? To chase down a murderer?