Tainted Blood (2021)

A disturbed drug addicted killer, Stephen, is forced to produce snuff films for an underworld crime organization to repay a long standing debt. As the mutilated bodies start to pile up around him, his savage crimes increase in their intensity. Stephen becomes paranoid that the organization, and its most violent enforcer, Winters, are out to destroy him. Stephen realizes he must make a stand, and in the ultra-violent finale he sets out to destroy his employers, before they can destroy him...But will the past destroy them all?