Elisabeth Bumshäuptl loses her job once more for her indecent behavior. Her father, pharmacist Willibald, gets quite upset about that. What he doesn't know: Elisabeth is in fact completely innocent – and still a virgin. The real baddies are her two younger sisters Christl and Maria, jumping from bed to bed every night. The two forge a diabolical plan and try to put her sister on the market. However, the plan does not work out, because Elisabeth sees through their game.