Respected doctor Martin MacNeill thought he could get away with killing his wife in the bath by making it look like an accident.

Lawyer Karen Conti got to know serial killer John Wayne Gacy, dubbed The Killer Clown

Holly Deane-Johns was in Thailand when her heroin addiction saw her jailed

Mum Toni Tiki was killed after leaving South Maroubra Surf Life Saving Club. Her killer has never been caught.

Kathy lived through a vicious attack by infamous serial killer Ted Bundy

Jack quit his job to chat to prisoners, and helped change one inmate’s life

Hedley's own tragic family mystery inspired him to investigate Lynette Dawson's disappearance

Brave Natalie is helping other burns survivors

When adoptee Cheryl search for her birth mum ended in a heartbreaking discovery

Daniella’s day at the races took a disastrous turn