Christel and Christoph have no education, no morals - they are working as servants in wealthy homes in order to clean out their hosts. Having decided to combine their talents and efforts, they are starting to work in the the house of Therions - wealthy bourgeoisie of Mulhouse...

Félix Mandel, an internationally renowned astrophysicist, is married with a four-year-old son and often has his head in the clouds.