Summary
Highlights
The video opens with a scene in Greece in 1987, where a girl named Danai receives two pendants from her grandfather, one for herself and one to share with the person she loves most. The plot then cuts to 2007, where the girl, Cleo, has grown up and is celebrating her birthday with her best friend, Danai, and their boyfriends. Later that night, Cleo's boyfriend proposes to her, but tragedy strikes when they are involved in a motorcycle accident. The video then cuts to New Year's Eve of 2015, where Dimitris Lainis, a criminology professor, is teaching about criminal psychology. He then visits his father, who is in a comatose state due to an accident, and stays with him all night. Elsewhere, Christina Desyla, a woman, is brutally murdered in her building, and her death is ruled an accident. A few days later, another man, Dr. Alexis Pappas, is brutally murdered in his office. The police call Dimitris, as his expertise in criminology would be valuable in the investigation. Dimitris arrives at the crime scene and notices a quote written on the floor: “Say what you should, and don’t listen to those you shouldn’t.” The police reveal that they found an envelope containing 220 euros in the doctor’s pocket. Dimitris theorizes that this is a calculated act of revenge rather than a crime of passion, and the 220 euros carry a symbolic meaning. A few days later, a hotel employee finds another man, Demosthenes, murdered in his bed, and another Pythagoras quote written on the wall that says, “He buries gold who hides the truth.”
Dimitris quickly connects this murder to the previous one due to another Pythagoras quote and the reappearance of the number 220, this time as a room number. After the autopsy, Dimitris theorizes that a female killer might be responsible. Later, they find another case of a man named George Efthymiou, a classics graduate, who committed suicide, and Dimitris finds another Greek quote that says, “All are destined to die.” He also notices that the victim’s watch stopped exactly at 2:20, which suggests that he was also murdered by the same serial killer. Just then, Dimitris receives a call from the hospital and learns that his father has suffered a severe stroke. Days later, Dimitris continues investigating all the murders and finds out that Christina and Demosthenes were accused of trial-fixing in more than 30 cases. Dimitris also finds it strange that, despite her old age, Christina took the stairs that day. Dimitris and Apostolos arrive at Christina's house, and Dimitris notices an ancient Greek quote on the elevator that says, “Everything happens according to the number; one is the beginning of everything,” along with “220 kg capacity” written on it, which confirms that Christina’s death was not an accident but a murder. Dimitris then meets with the chancellor, who tells him about a French mathematics professor, Marcel, who has extensive knowledge of Greek history and could help him. Dimitris asks for his help in understanding the meaning of frequent Pythagorean quotes and the number 220. The professor explains that the “Etero ego” concept was known to the Pythagoreans in relation to amicable numbers, where each number is considered the “other self” of the other, for example, 220 and 284.
Apostolos finds a case that connects all the victims, an accident from 2007, when a woman named Cleo and her boyfriend, Manthos, were hit by a car. The driver of the car was Tony Marnelis, who claimed that the motorcycle driver was responsible for the accident. The only eyewitness that night was George, who confirmed Marnelis’ false claims. The defense attorney was Demosthenes, and Dr. Pappas was the doctor who confirmed that Marnelis was not drunk driving. The judge overseeing the case was Christina Desyla, who declared Marnelis not guilty. Cleo was killed on the spot, and in her handbag, they found a pendant on which “284” was inscribed. Based on the theorem of amicable numbers, Dimitris predicts that the killer plans to murder Marnelis on May 22nd. He has figured out that the numbers that exactly divide 284 correspond to the days of the year on which the murders occurred. Dimitris visits Manthos, who is now wheelchair-bound and disfigured from the accident. Manthos says that Marnelis ran like a coward instead of helping them, as he was drunk. Manthos mentions how Cleo had been studying to become an astrologist and how they had shared so many dreams. Manthos firmly denies having killed those people out of revenge and admits that he hasn’t even been able to visit Cleo’s grave. The next day, Dimitris is informed by Apostolos that Marnelis has been murdered, just like he predicted. Dimitris arrives at the crime scene and notices the tied-up dead body of Marnelis with his chest carved out. He also spots another Greek quote: “What wrong did I do? What good did I accomplish? What did I forget to do?”
That night, Dimitris is still haunted by the case and recalls how Cleo had been studying to become an anesthesiologist. The next morning, he goes to visit Cleo’s grave and finds a pendant with the number 284 inscribed on it. He also finds another ancient Greek quote: “The future is yet to come. I’m still on a dead end.” Dimitris recalls how Manthos said he never visits Cleo’s grave, which makes him realize that the pendant must have been left by someone else. That night, Dimitris returns to the graveyard and waits for the culprit. A mysterious person arrives at Cleo’s grave carrying flowers and hangs another pendant on the grave, this one marked with the number 220 and featuring a Pythagoras figure. Dimitris steps closer and asks if they are the one responsible for punishing the people who wronged Cleo. The person turns around, and it is revealed to be Danai, Cleo’s best friend. She reveals that her grandfather was a mathematician, who had taught her about amicable numbers, and she had given the other pendant to her best friend, Cleo. Danai explains they went to the same school, attended the same university, pursued the same field of study, and had imagined their whole lives together. However, Danai never imagined that her best friend would leave her so soon, and so she decided to punish all those responsible. Dimitris speaks to her about the existence of God and the power of forgiveness, but Danai says that she doesn’t regret anything and she did what she had to do. Following this, Danai walks away from there, while Dimitris visits his father and removes him from life support with a heavy heart. Days later, Dimitris goes to meet the chancellor, who reassures him that he did the right thing for his father. Upon returning home, Dimitris opens an envelope and finds a locket with the number 1210, which is an amicable number with 1184. It is accompanied by a thank-you note from Danai, whom Dimitris chose not to report to the police. There is also a childhood picture of Danai and Cleo, which Dimitris carefully places on his board.