It's Autumn in Gothenburg and an Anxious Mother Calls the Police; Her Little Boy Was Lured Into a Car by a Man Offering Sweets. the Child is Returned Unharmed but Then the Same Thing Happens With a Little Girl, and Then Another. Each Child Attends a Different Nursery, and Each Parent Contacts a Different Police Station, So, at First, No Connection is Established Between the Incidents and the Reports Are Filed and Forgotten. Meanwhile Dci Winter is Investigating a Series of Random Attacks on Strangely Uncooperative University Students, but When a Four-Year-Old Boy is Abducted and Found Injured, the Forgotten Files Resurface and a Link Between the Stories Becomes Apparent. As Gothenburg Prepares for Christmas, Winter is in a Race Against Time to Prevent a Horrific Catastrophe.