Berglind hurried to her son and pulled him forcefully from the window. She held him close and tried at the same time to wipe the windowpane. But the haze couldn't be wiped away. It was on the outside of the glass. Pesi looked up at her. 'Magga's outside. She can't get in. She wants to look after me.' He pointed at the window and frowned. 'She's a little bit angry.' A young man with Down's Syndrome has been convicted of burning down his care home and killing five people, but a fellow inmate at his secure psychiatric unit has hired Thora to prove Jakob is innocent. If he didn't do it, who did? And how is the multiple murder connected to the death of Magga, killed in a hit and run on her way to babysit?