Worn down from dealing with Zamilda Grench, the landlady from "you would never believe it", biological researcher Bob Broglin and his assistant Jane Kriebel are desperate to move his small lab out of the Darsenfarsen building to almost anywhere else. Her latest imposition on Broglin is her own son, Zimon Grench, an airheaded walking disaster area. At the same time Zamilda fixates on having a fling with hunky Rocco Rivaldi who stops by the lab to shyly...