The film stars First Winter's Lindsay Burdge and Will Brittain as a teacher and her student engaged in a love affair.
The video clip lands as a promotion for the psychological thriller's August 20 on-demand release, Deadline reports.
A Teacher will also hit theatres in the US on September 6, while no UK release is currently known.
The film chronicles the unraveling of Burge's alter ego, after she has trouble ending an affair with her student, portrayed by Brittain.
It marks the directorial debut of Hannah Fidell, whose previous credits include We're Glad You're Here.
Jennifer Prediger and Julie Dell Phillips also star in the drama.