There are about 600 murders each year in the UK. So, what drives people to kill? Are some people born to kill or are they driven to it by circumstances? Michael Mosley delves into the BBC archives to chart scientists' progress as they probed the mind of the murderer to try to understand why people kill, and to find out whether by understanding murder we can prevent it.

Perhan is a gypsy teenager with telekinetic powers. A wealthy gypsy, Ahmed, visits the village and promises to get Perhan's sister the medical treatment she needs if they join him to Italy. Perhan soon discovers that Ahmed's business activities are in fact quite shady and he is soon lured into the elder's corrupt surroundings.

An English pianist living in Rome witnesses the brutal murder of his psychic neighbor. With the help of a tenacious young reporter, he tries to discover the killer using very unconventional methods. The two are soon drawn into a shocking web of dementia and violence.

The story bases on four Finnish brothers, nicknamed 'the Eura Daltons' who received nation-wide notoriety for tearing gas pumps apart when they needed cash.

Erica returns to her hometown for her parents funeral and her childhood friend murdered

A man obsesses over Rubia as the girl of his dreams, but she is lost in a world of her own as she obsesses after a man who doesn't know she exists.

Enigmatic gangster Silien may or may not be responsible for informing on Faugel, who was just released from prison and is already involved in what should be a simple heist. By the end of this brutal, twisting, and multilayered policier, who will be left to trust?

Ben Cronin has it all: the admiration of his many friends, a terrific girlfriend, and he's on the fast-track to an athletic scholarship. Ben's rock-solid, promising future and romance are turned upside-down with the arrival of Madison Bell. Madison, the new girl in town, quickly sets her sights on the impressionable Ben. While their first few meetings are innocent enough, the obsessive and seductive Madison wants more ... much more.

Johan Falk hasn't been working for over a year since he resigned from the police. Most of all he wants to move out to the countryside, but fate has a different thought.

Twins Ronnie and Reggie Kray are raised in east London, under the influence of their hateful but doting mother Violet. As they grow up, Ronnie's violent nature takes over, and Reggie follows his brother's lead. The two become notorious crime lords who rule over the East End club scene. But at the height of their power, the brothers veer into different lives, giving the older crime bosses a chance to reclaim what the Krays took from them.

A dying professor leaves his great-nephew a collection of documents pertaining to the Cthulhu Cult. The nephew begins to learn why the study of the cult so fascinated his grandfather. Bit-by-bit he begins piecing together the dread implications of his grandfather's inquiries, and soon he takes on investigating the Cthulhu cult as a crusade of his own.

A psychological thriller dealing with the dual persona a young man possesses and attempts to conceal throughout his ongoing sessions with his therapist.