Trailer here.
A girl called Laura dies on the running track during a meet. A few months later, her sister Anne, arrives back in town to attend a graduation ceremony at the high school where her sister will be honoured. She is in the Navy. She sees one of Laura's friends, Paula. She is jogging through town. Someone is following her. She gets killed by the person. Paula's teammates are waiting for her. When she doesn't show up, they have to take their team picture without her. Anne calls to see her mother. She looks around Laura's room. Anne's stepfather isn't happy to see her. Someone has a photo of the running team and is crossing off Paula's face. Anne goes to the graduation ceremony rehearsal. She visits Laura's boyfriend, Kevin. She gives him the graduation present that Laura had bought for him.
More students start to die. The inspector goes to see Coach Michaels. He asks him some questions. The coach gets fired. Sally's dead body pops up . Coach Michaels finds it and people think that he is the killer. Kevin chases him and they have a fight. Coach Michaels runs, Kevin follows and so does the inspector and Anne. The coach finds another body in the woods and Kevin is revealed to the killer.
He is bitter because of Laura's death. He tries to kill the coach too with a knife. Coach Michaels gets the knife when the inspector arrives and shoots the coach as he thinks that he is the killer. Anne goes to see Kevin and she goes up to his room where Laura's body is sitting. Kevin catches her and admits to digging her body up and bringing her back to his house. He tells her that they are getting married. Anne is horrified. Kevin turns on her.