Alibi

S9, E1: In the morning, Martin Siebert lovingly says goodbye to his wife Magda before going to work as usual. But later, she finds him dazed and covered in dirt on the banks of the river Spree. In a panic, the young lawyer takes flight and disappears. The missing persons team takes on the case. New to the team is ambitious Jessica Papst, assigned to replace Lucy Elbe, who immediately clashes with Alexander. The timing isn't ideal. Alexander is tormented by nightmares of his sister's death and has no energy to introduce a newcomer to the work of the missing persons unit.