The Art of Self-Defense (2019)

When Casey suffers an attack by a motorcycle gang, he turns to a local dojo to find his sense of security. There, he learns how to be more masculine by Sensei through an escalating series of martial art and lifestyle lessons. The more lessons he learns, the more Casey suspects the dojo and its mysterious Sensei of being involved with the motorcycle gang attack. His quest for answers delivers disturbing revelations and kindles a desire for revenge. Before Casey can have his satisfaction, he must face Sensei in a one-on-one match to the death.