The title of the film, set in Luxembourg in 1942, during the Nazi occupation, amalgamates the words Schacko (helmet) and chapeau claque (opera hat). The village, in which it is set, has not yet been feeling the effects of the war at this point.

André Jung
as Papp

Myriam Muller
as Nell

Claude Wagner
as Crëscht

Michèle Clees
as Mamm

Paul Greisch
as Bop

Josiane Peiffer
as Tata Zëss

Shirin Fabeck
as Jhuliett

Uli Eichenberger
as Monni Pit

Steve Karier
as Nic

Alain Hoffmann
as Heng