Following a power outage at the Lowanderska Hospital, Marianne, one of the nurses on duty that night, is found dead by her colleagues. The only witness claimed to have seen Nurse Tekla, who hanged herself 60 years ago in that same hospital and believes that she came back to haunt them. In Marianne’s pocket, Irene and her team found the cellphone of one of Marianne’s colleagues Linda, who mysteriously seems to have disappeared without a trace. At home, Irene and Krister are hitting a rough patch as they struggled to find time for each other.