Anders Agger is granted access for the first time to the high-security psychiatric hospital Sikringen in Slagelse. This time, he meets four very different patients who all share one thing in common: they have been sentenced to be there. Their mental illness makes them dangerous to those around them. That is why restraint, isolation, and conversations through armored glass can be a necessary part of daily life at Sikringen.

In a society governed by the rule of law, like Denmark, there are people who take care of those we would rather forget. At Sikringen in Slagelse, they are the blue men—and women. Here, the risk of assault is so present that security is a fundamental condition. It is the delicate balance between care and the use of force. In addition to the staff at Sikringen, Anders Agger also has the opportunity to speak with two patients he has not met before.