Library

Physicist Sir Claude Amory has developed a new equation that heralds the birth of a surprisingly powerful new explosive. However, his piece of paper with the equation written on it was stolen from his home. Sir Claude gathered the whole family in the reading room and ordered the butler to turn off the lights, hoping that the thief could return the equation in the dark. However, when the lights came on again, he was already dead... This time, Poirot not only had to solve the murder, but also had to prevent a worldwide terrorist crisis...

Clarissa, the wife of a diplomat, likes to joke and is full of imagination. She often imagines that one day she will go downstairs and find a corpse in the library. Unexpectedly, as the prophecy came true, she actually tripped over a corpse in the living room! To make matters worse, her stepdaughter Pippa confessed to her that she was the murderer. That night, her husband will bring a mysterious foreign dignitary to his home to meet with the Prime Minister. For the sake of her husband's career and to protect her stepdaughter, Clarissa tried her best to persuade three guests at home to help cover up the murder... Unexpectedly, the police showed up uninvited. Clarissa had to start weaving lies, and a spider web pulled everyone into a trap...