Schotty's at it again! At his new crime scene, he gets a visit from two friends, who bring him a forgotten key.

When Didi spots a felt furniture pad on the floor at the crime scene, he's shocked to discover that Schotty knows everything there is to know about all of the various objects used to protect floors against scratches.

Schotty tells Didi a touching story about the role felt furniture pads once played in his love life.

In this part, we find out how the story of Merle and the felt furniture pads ends, and also that Frido is about to have a colonoscopy—Didi has a word or two things to say on the matter.

The discussion about felt pads continues, and now it's time for Frido's contribution. To the others' surprise, he becomes rather philosophical.

The philosophical discussion on the subject of felt furniture pads continues, and finally we begin to understand what Didi's objection to them is really all about.

Despite the friends' arguing, the last part of the episode culminates in a creative outburst that unites them in the most beautiful way.