Jesper Ole Feit Andersen

Markus goes home to his teenage daughter, Mathilde, when his wife dies in a train crash. All appears to be a tragic accident until a mathematics geek, who was also a fellow passenger on the train, and his two colleagues show up.

Detective Laura has been on sick leave after suffering from postpartum depression, but when she and her partner become involved in a case, it becomes increasingly clear that she herself is hiding a dark secret.