Complex sentence: Everything seems perfect for Yeh Hsin until human remains are discovered in her backyard one rainy night and when around the same time Yeh receives a mysterious letter warning her that her life is about to change drastically.
Split into simpler sentences: Everything seems perfect for Yeh Hsin until human remains are discovered in her backyard one rainy night. Around the same time Yeh receives a mysterious letter warning her that her life is about to change drastically.