Martha is online and as long as she is connected to the main unit her life continues – monotonous, convenient, perfect. Nevertheless the well maintained system gets disrupted and Martha herself becomes the problem. The calculated consequence: offline.
Even before her first day at work in the homicide division Hamburg, Inspector Katharina Tempel is given an unusual case by her new superior DCI Georg König: The Leitermanns, a married couple, both doctors, have disappeared.