A weekend of relaxation in a wellness hotel. Dieter, a successful detergent producer, invites his girlfriend Mary to this very hotel to give her a very special present. Lothar, head of a children's clinic, is traveling to the same hotel with a special request. This requires special skills, a good plan and, above all, discretion. His assistant Emilie accompanies him as a cover. Between the plunge pool, steam bath and sanarium, the hotel's few guests come together. Everyone tries to implement their plan as efficiently as possible, and the misunderstandings pile up. When Alain, an extremely smart personal trainer, checks in, the situation becomes increasingly heated. Will he be able to clear things up or will everyone go deeper and deeper into hiding until no one knows what the mission was in the first place?