While Dr. Franck is arranging his new practice, sketchy dude Heinz Rose visits him pretending to know the address of Berthold Kramm, a client of Dr. Renz, and threats him with a gun. Kramm is curiously linked with the first job Rainer has got for Matula: to guard the home where Renz's client once lived and now is owned by a young woman who has received some inexplicable threats.—AleX_DJ