A Killer Among Friends (1992) on Netflix

A grieving mother sets out to find the murderer of her daughter.

Beautiful and popular Jenny Monroe has everything, the looks, the popularity, and the perfect mom. One day, Jenny goes out with her friends to the park and doesn't come home. 3 days later, Jenny is found murdered face down in a lake. Her grieving mother Jean, whom had a special bond with her daughter won't rest until she finds out who her daughter's killer is and neither will Jenny's best friend, Ellen Holloway.

—Kelly

Based on a true story. Jenny Monroe is the perfect daughter. One day she goes out with her friends and does not return. Later, the police arrive to tell her mother she has been found dead. Jean Monroe sets about a furious work through of grief in determination to find her daughters killer. The horrifying truth about Jennys final moments are shocking and disturbing.

—Anonymous