Why is?
Superficially: Charlie is a little washed-violence psychologist with a violence problem. Friends with his ex-wife, he tries to become a better person, in which he treated other people.
In essence: It accompanies Charlie through his daily life and the nightly Bettgeschichten the city. Derbe obscenities and quite intelligent allusions to what night (at least in some) bedrooms takes place alternate.
The female actresses are almost always dressed nicely and sparse, the humor, so it may seem grossly meets my taste. Since there's room for a little self-reflection and Charlie so somehow is a nice guy, I can only say:
Mir gefällts!