The Substitute (1993 film)

The Substitute is a 1993 American television film directed by Martin Donovan, written by David S. Goyer under his pseudonym Cynthia Verlaine, and is also Mark Wahlbergs first acting role and credited as Marky Mark, due to his successful hip hop career.

As the scorned Josh seeks to find a way to get revenge against Laura for using him, she meets and begins having an affair of her own with Joshs widowed father, Ben, who is also infatuated with the mysterious and attractive teacher. While Josh seeks to keep his brief tryst with Laura a secret, he also recruits his unsuspecting girlfriend, Jenny, to help him find any evidence against Laura when she moves into the house across the street from him and his father.However, things become more complicated when news about her past starts to reemerge, forcing Laura to embark on yet another killing spree to protect her identity and her crimes. When Laura learns that the teacher she is substituting for will be returning early, she breaks into her house and shoves her down a staircase, causing the teacher to die from a heart attack. But Laura is witnessed entering the house by one troublemaking student, named Ryan Westerberg, who attempts to blackmail her. But Laura murders Westerberg too and covers it up to make it look like a gang killing. ........

Source: Wikipedia