On the 23rd of December 1996, the first murder in living memory occurred in West Cork, Ireland. The body of French documentary maker, Sophie Toscan du Plantier was found, beaten beyond recognition and so began a murder mystery that would span 25 years. Join host Gemma Delaney, and special guest Sinead McHugh from Mens Rea Podcast, to dissect the two new true crime documentaries on the gripping case.

Imagine waking up to learn you'd been in a horrific accident which had completely wiped your entire memory. The one thing you could remember? Your twin brother who you depended on to help you fill in the blanks. But what if everything he told you was lies? Would you really want to know the sinister truth? Host Gemma Delaney is joined by presenter and broadcaster Trish Archer to tell you what's up.

Has any other disappearance ever blown up online quite like the case of Elisa Lam? Join host Gemma Delaney and special guests Murder Most Irish as they talk all about the Netflix true crime documentary, "Crime Scene: The Vanishing at the Cecil Hotel".

Boston, 1993. Police Officer John J Mulligan is found shot dead, execution style, outside a busy Walgreens. It doesn't take long before 19 year old Sean K Ellis is the prime suspect. But did he do it? Join host, Gemma Delaney and special guest, broadcaster Keith Walsh to find out What's Up.

Season 3 continues with the Netflix documentary "The Sons of Sam: A Descent into Darkness". New York, 1977, and the city breathes a sigh of relief as the notorious serial killer Son of Sam, is finally caught. But to journalist Maury Terry, something just doesn't add up. What if the real Son of Sam is still out there? And worse still, what if there's more than one. Join host, Gemma Delaney, as she talks you through this must watch series.

Season 3 of What's Up Doc launches with a bang! Join host, Gemma Delaney, with special guests Eileen and Charlie from CrimeLapse podcast, as they discuss one of the biggest true crime documentaries of the last few months "American Murder: The Family Next Door", all about Chris Watts and the horrific murder of his wife, young daughters and unborn son.

1980's New York. The Mafia run the city with an iron fist and the FBI seem to be powerless, until a little known law is discovered. Host Gemma Delaney talks you through the biggest wiretapping operation ever attempted and how the FBI finally brought...

Greg Kelley has it all. A loving family, devoted girlfriend and seems to be heading straight towards a career in the NFL. But when a 4 year old boy accuses this small town football star of sexual abuse his whole life falls apart. Did he do it? Host...

When Andrew Bagby is found dead in a park, all roads quickly lead to his troubled ex-girlfriend. When she reveals she is pregnant with his unborn child, the case takes an unbelievable turn. Join host Gemma Delaney while she breaks down this...

Every day thousands of drugs samples are sent to crime labs across the world to analyse and convict drug users. But what if the chemists were under the influence of the same samples? Could you trust the validity of a test done by someone under the...