Richard Voss receives a call: two women have been stabbed in the laboratory of the faculty of chemistry.The security agent Maik Schellhorn goes with Richard and Franziska to the laboratory: they see the corpse of the Dr.Ina Zeise and then Franziska realizes that the second stabbed wife, Julia Berking, is still alive and will be sent to the hospital.The Dr. Tuttlinger explains that Ina Zeise was working about chemical elements for car batteries.When Franziska pays a visit to Julia Berking at the hospital Julia tells her that she can describe the aggressor: the composite portrait is equivalent to that of Maik Schellhorn,the security agent.Besides Ina had troubles with her ex-husband the Dr. Uthoff.The team knows also that Maik Schellhorn and Ina were in contact because of a case of cyber attack.
