The Lunatics Nest

Sherif (Mohammed Najm) wants to marry Amani (Laila Alawi), but her father Gad Al-Haq Metwally Owais (Hassan Abdeen) requires that her sister Tahani (Mimi Gamal) to marry first because she is older. Amani agrees with Sharif to deny and act as someone coming to her sister's speech. Can they complete their marriage, will the plan succeed?