Ryan Williams, a prominent real estate entrepreneur, is found murdered in his apartment. The slit throat and unclear markings have left the police stumped as to who committed the crime. However, there is one strange thing: in Ryan's jacket pocket, there is a letter mentioning an unpaid debt and a name that has been presumed dead.

The letter sets off a chain of mysterious events and dark relationships that Ethan will have to investigate. Ethan quickly realizes that this case is not simply a simple murder, but also involves Ryan's past and complicated relationships.

Chapter 1: The Red Coat

Day 1:

Ethan Quinn walked into the crime scene. The Sky’s spacious living room overlooking the city was lit up, but there was no life in the air, only the silent death of Ryan Williams. His body lay motionless on the floor, his throat brutally slit. There was no sign of a struggle, no sign of forced entry. He was simply… dead.

“That’s strange,” Ethan muttered, bending down to examine the body. He was still very young, but he had been trained to recognize the signs of abnormality. His mind had always been quick and clear.

Beside the body, a red coat was draped over the sofa. Ethan approached, and in the coat pocket, he discovered a letter, written in hasty handwriting:

“Old debts not yet paid, that debt will find you.”

He read the letter again and felt a tension in the air. This sentence could be a threat, or an important clue.

As a young detective, Ethan was not afraid to face complicated cases, but there was something about this case that he could not ignore. The letter, the red coat, and the name Sophie Martin all had no clear connection.

Sophie Martin had died many years ago, but why was her name appearing in a murder case at this time?

Chapter 

Day 2:

Ethan begins to investigate Ryan Williams’ past. He learns about Ryan’s family, friends, and business associates. This leads him to a woman named Charlotte Williams – Ryan’s wife, who is believed to have been motivated by knowing that Ryan was planning to sell a large portion of his assets, affecting her family’s finances.

Charlotte, although seemingly gentle and virtuous, has a complicated history of extramarital affairs. She once had an affair with a man named Ben Harris, a business