When multi-millionaire Simeon Lee, a vengeful, patient old man, invites his family to gather at his home for Christmas, the gesture is met with suspicion by many of the guests. Simeon is not given to family sentiment, and not all of the family are on good terms with one another. To make things worse, he has invited the black sheep of the family, Harry, and Simeon’s granddaughter, Pilar, whom none of them has ever met before. Simeon is intent on playing a sadistic game with his family's emotions. An unexpected guest – Stephen Farr, son of Simeon Lee's former partner in the diamond mines – means that the house is full of potential suspects when the game turns deadly.
1. Hercule Poirot, the Belgian detective
~Deductive, Smart, Considerate, and Psychologically Intelligent type of person.
2. Colonel Johnson, Chief Constabler
~Plain, Chivalrous, and Sincere to the others.
3. Superintendent Sugden, the investigating police officer
~Fiery Spirit, Solidly tough, and Determined to solve the case.
4. Simeon Lee, an old millionaire
~Vengeful, Patient, Successful with woman, broken his wife's heart, and have a sadistic sense of humor.
5. Alfred Lee, Simeon’s son
~Devoted to his father, patient, and a chivalrous man. He and his wife lived together with Simeon.
6. Lydia Lee, Alfred’s wife
~Devoted to her husband, jealous of Alfred's attention to his father, and a spiritful woman.
7. George Lee, Simeon’s son
~Greedy, Patient, a type that will do anything for money.
8. Magdalene Lee, George’s wife
~Childish, attractive person, also a type that will do anything for money.
9. David Lee, Simeon’s son
~Devoted to his mother, revengeful spirit, unable to see blood, and have the mind of a dreamer.
10. Hilda Lee, David’s wife
~Smartest of all the wifes, she is patient, and devoted to her husband.
11. Harry Lee, Simeon’s son
~Have the same characteristic like his father, also inherited Simeon's habit of jerking his head back when he laughed.
12. Pilar Estravados, Simeon’s only grand-daughter
~Attractive, Cruel to her enemies, Adventerous person, and have an attitude that only serves herself.
13. Stephen Farr, Son of Simeon’s former business partner
~Patient, Adventerous person, able to handle a business well.
14. Horbury, Simeon’s valet
~Queer chap, moves like a cat. Moves only when he was ordered, and he's a bit considerate about money.
15. Tressilian, the butler
~An old butler of this house, serving the Lees since year one. He seemed to be a good friend with Horbury.
16. Walter, the footman
~A new guy, seems frightened to everything he sees.
[spoiler=23rd Dec]-Pilar Estravados entered the house.
-Harry Lee entered the house.
-Simeon shared a story about his sons being a nuisance to Pilar.
-Simeon shows his uncut diamonds in the safe to Pilar.
-Pilar gets out of Simeon's room.
-David and George with their respective wives entered the scene.
-Harry chatted with Simeon on his room.
-Stephen Farr entered the house.
-He entered Simeon's room, and chatted about his father's business.
-Stephen Farr got out of Simeon's room, telling him that he will tell more tomorrow.
-All person inside the house rested for tomorrow.
-Harry entered Simeon's room, and chatted with him.
-Simeon seems to show affections to Pilar and Harry Lee.
-Harry Lee moves to the dining hall.
-Simeon Lee telephoned his lawyer, about changing his will.
-Simeon Lee and all his family members entered the dining hall.
-Simeon tells them about the change of will, and to cut his son's allowance.
-His family members seems to object, but then Simeon banged the table.
-He told them that no one of them is worth anything since they don't have childrens, and only shows affection to Pilar.
-His family members got out of the room, each of them seems to be iritated.
-Stephen Farr entered the house.
-Sugden comes in the house, and goes into Simeon Lee's room to talk about his diamonds was in problem of being robbed.
-Sugden entered Simeon Lee’s room, and leaves the house.
-1 hour later, a loud cry was heard inside the house.
-All person inside the house tried to open the door, but it was locked.
-The men inside the house broke down the door.
-Sugden, patrolling near the house, quickly entered the scene.
-All people inside the house entered the room and saw Simeon Lee, dead, in a pool of blood.
-The mills of God grinds slowly.....-David Lee says that as he sees the body.
-Who would have thought the old man have had so much blood in him?-Lydia Lee says that as she sees the blood.
