Well, Paul Hardcastle has created a lot of music over the years. If 'paul hardcastle 19' is about a song, perhaps it has a story related to the time it was created, the inspiration behind it, and the musical elements used. Maybe it was the 19th song he wrote in a particular period. But again, this is all guesswork without more details.
One common theme is the friendship between Hardcastle and McCormick. Many fanfictions explore how their relationship develops further. Another theme could be adventure, as they often go on exciting adventures in the show, and fanfictions may continue or expand on those scenarios.
You can start by looking on fanfiction platforms like Archive of Our Own. There are often various stories related to Hardcastle and McCormick there. Just search for the show's name in the search bar, and you'll get a list of available fanfictions.
A man wakes up in the body of different guests at a party where Evelyn Hardcastle will die. He has to solve her murder by reliving the day through different hosts.
I really can't determine who Tim Lee is in this story. There are so many people named Tim Lee in the world. He might be a businessman in a small town who has an interesting journey of starting his own business. Or he could be a student who has overcome great difficulties in his studies and has a very inspiring story.
Both of them were famous actors and singers China Hong Kong. Zhang Guorong was famous for his multi-talented acting talent and unique charm. He was chosen as one of the four most beautiful women in Hong Kong. His appearance was described as " ever-changing " and praised as picturesque. His talent and personality were also praised. Li Jiaxin was famous for her beautiful appearance and elegant temperament. She was described as the most beautiful woman in the world, with star-like eyes, lips like summer flowers, a nose like hanging gall, and eyebrows like distant mountains. She was an outstanding actress and model, and had starred in many movies and TV series. In general, both of them were important figures in China Hong Kong's entertainment industry. Their talent and beauty made them idols for many fans.
I don't know specifically who Agnes Lee is in the story without more details. She could be the protagonist, a character based on the author herself, or just an important figure in the narrative.