In a calm and peaceful English town, an inquisitive and determined schoolgirl named Pippa Fitz-Amobi embarks on a quest to unravel a murder that occurred five years ago. The circumstances surrounding the death of a 17-year-old girl named Andy Bell remain shrouded in mystery. Andy's boyfriend, Sal Singh, was deemed the prime suspect in the case, but tragically took his own life before he could be arrested. Many members of the town, including the police officers, firmly believe that Sal is responsible for Andy's death. However, Pippa firmly believes that someone else is the true culprit and takes it upon herself to conduct her own investigation. To her teachers, she presents her efforts as a school project focused on gathering information about the chilling case. Pippa receives assistance from Ravi, Sal's brother, as they work together to uncover the truth.