Murder Workshop (2014)

Akiko who's being abused by her boyfriend, Takagi. One day, tells him that she wants to take an acting workshop to become an actress, but he calls her ugly and crazy to think of this, and continues his abuse. After the abuse has passed, she receives an email on her cell phone with the subject line "Workshop Information". Akiko takes the money she has been saving for the workshop to become an actress, and heads to the place designated in the e-mail. There, the instructor, Eno, gathers other participants besides Akiko, and they are to take part in a "hands-on" workshop where they will train for three days and two nights to make sure they kill the person they want to kill.