One of Dåådh's old radical comrades is accused of treason and hung on the square. His body is going to be donated to Uppsala University to undergo dissection for the advancement of medical science. But the body instantly disappears and the two students who were sent to take possession of it are found murdered. Dåådh soon realises that his enemy Märta Raxelius must be involved in the theft of the body. But two more murders take place and it becomes clear to Dåådh that someone is ready to kill indiscriminately in order to prevent him from uncovering the dangerous truth he has got wind of. And before he realises it his own life is also in danger.