Juha has lost his wife in an accident. Years after, he still feels numb and unable to connect with people. Meeting Mona, a dominatrix, changes everything.
When a homeless Romani boy is arrested at the Danish border for possession of a missing public servant's passport, police inspector Carl Mørck and Department Q are tasked with finding the connection.
In a moment of cowardice, Detective Carl Mørck sends Rose, his junior colleague in Department Q, to the remote Danish island of Bornholm to answer his old colleague Christian Habersaat's repeated requests. But during his forced retirement ceremony Christian kills himself sending Rose into a journey deep into her own traumatic past. Later, Department Q are embroiled into an old cold case of a girl found dead hanging in a tree.
