Episodes: Series - Les Althulatha - 1977

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• episode #4
• episode #5
• episode #6
• episode #7

A jewelry thief commits his crime at a specific time on Tuesday every week and leaves no trace. Officer Ragdi is killed, so the search is intensified to catch the thief, and Officer Ali pledges to arrest him.

Ali moves to investigate the murder of the artist Khairiya in her villa, and the investigation begins with her friends Nabila and Safwat. Nabila and Safwat begin to point the finger at Adel, who had a love affair with Khairiya.

It turns out that Tuesday's thief is a woman. She contacts Ali and tells him that she did not kill Khairiya and that she will stop stealing until the killer is caught. Dr. Adel is investigated after his fingerprint is found in the room in which Khairiya was killed.

Sanaa suspects that there is a relationship between Nahid and Ali, and Ali is still trying to reach the Tuesday thief. He finds a recording of Khairiya’s murder, so he interrogates Nahid, and she unintentionally points the finger of blame at Safwat.

Ali interrogates Safwat and arrests him. He confesses to killing Khairiya and that he is the Tuesday thief. Later, Ali receives a call from the Tuesday thief, telling him that Safwat is not the Tuesday thief.

As Safwat stages his crime, Ali discovers that Safwat did not kill Khairiya and that Tuesday's thief did not steal, but rather he and the stolen persons formed a smuggling gang. Zeinhom admits to Ali, after being compelled, that he worked with a group to smuggle jewels out of Egypt.

Ali arrests the jewelry smuggling gang, and Antar, who killed Khairiya, is arrested for discovering the gang's secret. It turns out that the head of the gang is Abdul Mageed, Ragdi's cousin, and he killed Ragdi after discovering his truth.