Tommy Tiernan and RTE viewers were fascinated by former State Pathologist Marie Cassidy who explained what a life of examining dead bodies is like.
Aberdeen born, Marie Cassidy was the State Pathologist from 2004 until 2018 - the first woman to hold the position - examining bodies from some of the most high-profile deaths in Ireland in that time.
The 63-year-old was the first guest on the new series of the show and had Tommy and viewers locked into her detailed story.
Answering what the job is really like, the doctor said: "It's not something you can get used to, or it grow on you, because it can be brutal.
"It's a bit depressing, but if you find it depressing you have to get out."
The author explained how she dealt with murder scenes and was unfazed, she said: "At the end of the day I thought, I'm here to do my job which is to speak to the dead pretty much, and help the family, give them closure if I can."
Marie was "mostly dealing with suspicious deaths and homicides" and spent "four or five hours, (even)ten hours" with the bodies at crime scenes.
She added: "Some are going to be straightforward, some are going to take a bit of time.
"Everything is so detailed so that you don't miss anything."
On how she ended up in her role, the now retired woman said: "I found out very early on that I wasn't very good with the living.
"I tried loads of things.
"Eventually came to pathology and I thought this would be a nice thing to do."
Ending the interview, Tommy said: "Thanks for all the hard work you did for us over the last decades."
Viewers loved the interview and praised Marie and Tommy for their intriguing chat.
Dorothy Molloy said: "I find Dr.Marie Cassidy one of the most interesting people."
Another said: "He is such a good interviewer, really enjoyed Marie Cassidy interview, he seems to put everyone that comes on the show at such ease."
Robert Barrett added: "Marie Cassidy is certainly the most charming and delightful State Pathologist we've ever had."
