After meeting at viral influencer Reem’s birthday party, Youssef, Yasine and Nour come together when they find a box filled with mysterious items and an ominous message.
The group follow the leads and decide to keep the police out of their investigation. They start talking to the people who saw Arwa last.
The group ask around different agencies looking for Arwa's foreign worker, Leah, hoping she will tell them what happened during Arwa's final confrontation with Salah.
Upon arriving to Alexandria, the group map out how they’re going to break into Salah’s villa. Hala has a health setback and the doctor shares disheartening news with Yasine.
Reem has difficulty adapting to life with her father and his family. Hala doesn’t take well to bedrest. A new box appears at Reem’s house.
Yassine is fearful of the people his mom works with. The group interview the musicians to learn more about Alia.
The group want to talk to Mariam to find out what truly happened between Khaled and Alia. Youssef gets a worrisome call from Hassan. A third box appears.
After Nour reads the book provided in the box, she leads the others to a criminal psychologist who is able to tell them Mokhtar’s story.
The group talks to Yahya to find out what happened the day Mokhtar came to him. Nour’s parents are furious upon discovering what she’s been up to.
Hala’s health setback pushes Yasine to change his behaviour towards her. Nour finds documents in Youssef’s things that raise her suspicions against him.
After the group get turned down by the police, they decide to post a video on Reem’s YouTube page. Youssef and Nour confess their feelings for each other.
Nour finds at her door the fourth and, what the group believes to be final box. Yasine pitches to his mom an innovative idea to keep her NGO open.
The group meet with Khodr’s wife, Safa’, to find out how he was dealing with his illness. Youssef confesses to Hassan the whole truth.
The group rushes to Reem’s house to find that the killer left them a threatening letter, but Youssef insists that they should keep going with their investigation.
Upon learning of Hala’s disappearance, Youssef and Nour hurry to the meet Yasine at the police station. Later, the group uncovers the secret behind the key in the final box.
Shereef plays his last cards with the group, putting everyone’s life on the line.