The painting portrays a scene reminiscent of the conclusion of Agatha Christie’s Curtain: Poirot’s Last Case. At this moment, detective Hercule Poirot, as a righteous figure, takes the law into his own hands. There is a criminal "X" who incites people to do wrong things for his will but can also conceal himself from justice. Poirot murders "X" because his next target is Arthur Hastings, Poirot's old friend; the move is considered controversial. Fans of Poirot can identify him in the painting through his attire and distinctive mustache. The figure's face is split into two colors, with a cold blue on the right and a warm orange on the left. This duality represents the debate surrounding the act of murder, as it is seen 1) the murder is cold and heartless because killing is undesirable no matter what kind of motive 2) the murder is warm because it is necessary to prevent a dangerous individual from causing harm. 

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The painting’s composition includes a partially drawn curtain in the background, a reference to the book’s title, as well as light streaming into the room and illuminating the figure’s body. I used this light to symbolize my belief that Poirot’s actions were justified. Despite the figure facing away from the light source, I chose to depict him in bright colors, emphasizing that he is always in the light and that his actions align with justice. The right and left sides of the overall picture correspond to the colors on the figure’s face, with darkness on one side and brightness on the other; evil on one side and justice on the other.