Xtra Credit (movie, 2009)

A young offender on the mend, 19-year-old Cole Hurley agrees to attend a university devoted to prisoner reform. But hope for a turnaround is endangered by his impulsive affair with the seductive Kay Weller, a professor desperate to escape her abusive husband - and Cole is her only way out. But when Kay's husband is found murdered, Cole's education comes with a new lesson: trust no one.