Detective: Portrait of a Killer

Have you ever had to delve into the mind of a madman? I think the only one who has such experience is Dr. Stefan Streich... You are detectives tasked with finding a serial killer. Unfortunately, the investigation has hit a dead end - you have no evidence or leads. You do not know what the maniac's next move will be, so you turned to the famous psychiatrist Stefan Streich for help. But with every minute spent in his home, there are more and more questions... Will Dr. Streich help penetrate the mind of a serial killer, or will you remain baffled about what is happening?