Police officer Hanna Ahlander has been suspended from her job in Stockholm and dumped by her partner when she moves to her sister's vacation home in Åre. When a young woman goes missing on the icy night of Lucia, Hanna can't help but start investigating the case. With a tough family situation and an understaffed police station, local police officer Daniel Lindskog reluctantly has to accept Hanna's help. But the big question is whether they can trust each other.