An accident occurred and her sister Aom passed away. Ann returned to Thailand. Because Ken and his sister were lovers, they quickly became familiar with Ann. Later, I felt that Ann was intellectual, calm, and even mysterious, and I felt strange in my heart. Because Ann found a report about a fire in a decoration company owned by JP Company in her eldest sister Aom's room, and Ken mentioned that Aom had been to JP Company on the night of the car accident, Ann felt that Aom's death was related to that company, so she sneaked into JP Company to work, met the company owner Tik, and met her ex-boyfriend Smart. After in-depth investigation, it was discovered that not only the boss Tik was a huge suspect, but even Smart was also involved. Who is the real murderer?
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