This insightful, fascinating series gives you an insight into psychopathic behaviour. It makes for some uncomfortable viewing, especially when watching a psychopath explain his behavior like he's just been taking a stroll. It's exceptionally creepy, but definitely compulsive viewing. Experts talk you through what kind of behaviors psychopaths can display, which I find extremely helpful. At the start of the series you're asked 'would you see the signs'? The point is, psychopaths adapt and blend in, adjust their behavior to suit their needs - so that question is chilling. Each episode focuses on a different psychopath - be warned, some of the details are not for the faint of heart, as psychopaths have no empathy, relishing reliving their crimes to an extraordinary level.