Two Plumbers, a mysterious call and a dead man in the bathtub: They were only asked to repair a water-damage, but now the two craftsmen are sliding unexpectedly into an odd criminal case. Being torn in between the drive to solve the case and the affliction to pull out their own heads of the slings, they get more and more into the misery. And on top of it they have to struggle with a strange inspector, an attractive lady and the annoying party with loud music upstairs...