The servant Josef enters the seemingly peaceful household of the psychiatrist Jaroslav and his wife Žofie, a great lover of the theatre. He is supposed to serve the purpose of increasing the prestige of the family, but he is the true source of confusion and senseless actions. The household becomes a real madhouse. Friend Arthur advises how to get rid of the servant. He will have to be persuaded that Madame Sophie is a psychiatric case. But as we watch this mess, the question gradually arises - who is the madman here?