Romantic Warriors (낭만자객 / Nangman jagaek) (2003)

Desperate for a better life with his younger sister, Yoi (Kim Min-jong) gangs up with "Romantic Warriors", an assassin squad, to make money. The squad, however, consists of dummy assassins who are ignorant of fighting nor martial arts. One day as they are on the way to their big assassination job, they got lost in a forest and stuck in a house haunting spirits of women who died with bitter grudges. Unknowing that the tripped assassins are that amateur, the female ghosts believed that they can make use of them to take revenge on those who killed them.