Build a movie plot around this: Who is Dawn's stepfather? Bill.
A:
Dawn O'Keefe (Jess Weixler) is a teenage spokesperson for a Christian abstinence group called the Promise. She attends groups with her two friends, Alisha (Julia Garro) and Phil (Adam Wagner). One evening after giving a speech about the purity ring worn by members of the group, she is introduced to Tobey (Hale Appleman) and finds him attractive. The four begin going out as a group. Dawn has fantasies about marrying Tobey, although after acknowledging the attraction, they agree that they cannot spend time together. Soon after they give in and meet at a local swimming hole. After swimming together, they go into a cave to get warm and begin kissing. Dawn gets uncomfortable and tries to get them to go back. Tobey then attempts to rape Dawn, who panics and tries to push him off. Tobey becomes aggressive and shakes Dawn, resulting in her smacking her head on the ground. While she is dazed, Tobey takes the opportunity to begin raping her. Dawn fights back and inadvertently bites off his penis with her vagina. A horrified Dawn stumbles away and she flees the scene. After a Promise meeting, she meets her classmate Ryan (Ashley Springer) at a dance; they talk, and he drops her off at her home.Dawn drops her purity ring off a cliff and goes back to the swimming hole. She screams in horror when she sees a freshwater crab crawling on Tobey's penis. She then researches "vagina dentata" and realizes she may have it. She visits a gynecologist, Dr. Godfrey (Josh Pais), in an attempt to find out what is happening to her. When he assaults her in the guise of an examination, reaching up inside her without a glove, she panics and her vagina bites off all four fingers on his right hand. While biking home, she encounters a police officer driving Tobey's car and sees several police vehicles pass. She decides to go back to visit the pool to investigate. When she arrives, she sees the police bringing up Tobey's body - he presumably died of shock in the water. Meanwhile, back at home, her ill mother Kim O'Keefe (Vivienne Benesch)...