A good girls guide to murder

A good girls guide to murder by Holly Jackson

As a graduation requirement, each student is to submit a capstone project. Pip decides she is going to solve a murder. Actually, the case has been closed, but she doesn't believe the police got it right. So she digs in and begins gathering new evidence.

The case involves a high school student, Andie Bell, who was supposedly murdered by her boyfriend, Sal Singh. Sal also happened to commit suicide was Andie was still missing. The most interesting thing about the case is that the body of Andie was never found. Pip starts by reaching out to Sal's family which includes his brother Ravi. Resistant at first, Ravi eventually comes around and decides he wants to help her find out what really happened that night.

Pip has organized all of her thoughts and evidence in a file, and adds to it everyday. But, someone knows she's getting close. Too close. And they want her to stop. She begins to receive threatening notes, but she keeps going etc.