Jawbreaker (1999) on Netflix

Meet Liz Purr: Friendly. Pretty. And popular. Flash-forward to the morning of her 17th birthday, and you'll find her being taken out of her bed, tied-up, and taken to the trunk of the car that her three best friend's (Courtney, Julie, and Marcie) are riding while being gagged with a jawbreaker. Everything goes terribly wrong as the 3 girls pop the trunk to find Liz dead, from choking on the rock hard candy. Courtney is a cold hearted bitch who could care less about the death of her best friend, but the chance of a ruined reputation. Marcy is like Courtney's shadow who will agree on anything Courtney says. And Julie is a good girl who wants to go to the police. But Julie gets a war when Courtney will do anything to cover the case up. And I mean ... anything.