What if you woke up one morning to find that the love of your life wasn't who he said he was? More than 30 women in the UK have discovered that they were in relationships with undercover police officers who were using assumed identities to infiltrate protest groups and other non-criminal organisations. See omnystudio.com/listener for privacy information.

Dennis Rader is one of the most sadistic serial killers of all time. He called himself BTK, which stands for 'Bind, Torture, Kill' and he's serving ten consecutive life sentences for his unthinkable crimes. In the past few weeks, police, along with Rader's daughter, Kerri Rawson, have said they are now investigating a further five possible victims linked to Rader with the possibility of more cold cases being looked at. See omnystudio.com/listener for privacy information.

On Father's Day in 2005, Robert Farquharson drove his three children Jai, Tyler, and Bailey, into a dam in Winchelsea. We're joined today by journalist and author Megan Norris to recall the horrific crime, the shockwaves it sent through the small town and throughout the country, and hear the battle that still needs to be won so that the children's mother, Cindy Gambino, can rest in peace. See omnystudio.com/listener for privacy information.

 Bek and Nina discuss the infamous pedophile cult leader William Kamm, who calls himself The Little Pebble. The pair talk about how Kamm got his start and the incredible young woman who brought him down. See omnystudio.com/listener for privacy information.

Bek and Nina address the mushroom-shaped elephant in the room before discussing the stabbing of 12-year-old Payton Leutner by her two school friends who believed they were under the control of the internet-created character, the Slenderman.See omnystudio.com/listener for privacy information.