A love affair turns dangerous when a young man discovers his girl has been hiding something from him in this drama, a change of pace for British horror man Pete Walker. Ginny (Alison Elliott) and her best friend Carol (Debbie Linden) are hitchhiking one day when a truck driver picks them up. The trucker takes a shine to Carol, and after a visit to a coffee shop, Ginny is left thumbing a ride on her own. Mike (James Aubrey), who saw Ginny while getting some coffee, gives her a lift and offers to take her out to dinner. Initially wary, Ginny accepts, and within a few days the two are dating steadily. Mike is a songwriter who writes commercial jingles and works with a successful pop group called Bad Accident, while Ginny is a student looking towards a career in fashion design. After spending a few nights together, all seems to be well with the new couple, until Mike learns pretty Ginny's secret -- while she looks to be 19 or 20, she's actually only 14 years old. Mike tries to call off their relationship, but he and Ginny are too attracted to one another to stay away, and they cautiously continue to see one another until Ginny's parents (Mark Burns and Juliet Harmer) become aware of the sexual nature of their relationship. Ginny's father contacts the police, and under the pressure of interrogation Ginny tells the authorities that Mike forced her to be intimate with him; while Mike was prepared to be charged with having sex with a minor, he becomes distraught when he learns Ginny has also accused him of rape. Home Before Midnight also features Chris Jagger (Mick Jagger's brother) as a member of Bad Accident.