Fahmy, a rich and paralyzed man, asked the young lawyer, Hassan, to make his will for him. When Hassan returned to present the will to Fahmy and found that he had changed his mind due to the appearance of some signs of madness on his daughter, who was constantly saying that she had seen someone kill her father in the dark, Hassan, with the help of his colleague Fathi, tried to find the secret key. He was suspected of Negeya and the palace servant's marina. The ghosts and strange sounds in the night made the atmosphere very tense, and after several incidents things gradually became clear. Fahmy's twin brother was recently released from prison, so he replaced his brother after he imprisoned him in a secret hall at the bottom of the palace to kill him in time. The criminal brother's plan fails at the last moment thanks to the vigilance of Hassan and his colleague, and the doors of happiness open before Hassan and Yousriya.