Ruben Jaramillo was just 29 when he began a relationship with 45-year-old Maria. When she tried to end it, Ruben started self-harming whilst becoming increasingly obsessed with Maria.

After a promising beginning, Sadie's relationship with Terry Morrison turned violent. She fled and hid in fear, but Terry bombarded her with phone calls and even attempted to install tracking software on her phone.

Deketrice Jackson is the first to admit she has a problem with women. But having served three years for stalking, she will soon be released and given yet another chance. She claims she wants to change, but breaking the cycle may not be feasible.

James Corpus and Ashley Manfre had been friends for over a decade, but then the mask slipped. After relentlessly stalking her, James was arrested and imprisoned. But just when Ashley thought the whole ordeal was over, there was worse to come.

When Jaclyn Feagin discovered her husband Jesse and his ex-girlfriend Sandra had been messaging one another, she set out to take revenge on the woman she believed was trying to break up her marriage, by scaring her as much as possible.

David McGee's violent tendencies against women would be discovered by his girlfriend Charmeka in the most frightening way. After they broke up, he followed her to work, damaged her property and harassed her by calling and texting hundreds of times.

John Anderson made partner Rachel's life a living hell. Stalking and attacking her, he was arrested and imprisoned. Now due for release, he wants his family back together. However, Rachel wants something totally different.

A look into the mind of Daniel Thompson, and his deadly obsession with high school sweetheart Angie. His controlling behaviour became a dangerous pattern throughout his life.