A water closet comprising a toilet seat set with a lid element and a seat element, a toilet bowl, a douche device with a housing, wherein a mounting plate detachably mountable on the toilet bowl is provided, and in that either at least one fastening element, by which the housing of the douche device can be fastened to the mounting plate and to which the toilet seat set can be fastened, is provided, or at least one first and one second fastening element are provided, wherein the housing of the douche device can be fastened to the mounting plate by the first fastening element and the toilet seat set can be fastened to the mounting plate by the second fastening element.