The ex-girlfriend of former Boyzone member Mark Walton was arrested for the murder of French nanny, Sophie Lionnet. Why did Sabrina Kouider brutally kill this woman? S1/Ep5
28-year-old Mahmuda Khatan stabbed her husband of only one month on his birthday. Police detectives, experts and acquaintances discuss why she murdered him. S1/Ep6
A classic love triangle that lasted 16 years led to a shocking murder by Lakhvir Singh in 2009. Her method of killing gave her the nickname 'The Curry Killer'. S1/Ep4
When Mike Williams left to go hunting one morning, he didn't know he was leaving forever. It would take nearly 20 years to find the killer: his wife, Denise. S1/Ep10