Her body was discovered lying naked, soaked in blood, with an umbrella in her anus, and Coke and beer bottles in her vagina.

White detergent was sprayed all over her body.

At the "Artist Talk" session held at the National Museum of Modern and Contemporary Art in Seoul in September, the director said she couldn't have made the film without virtual reality tools.

"It was a perfect tool for me to let the viewers more acutely feel the pain and sadness that the woman must have felt before she met a lonely death," the director said.

"In virtual reality, viewers can be where the action takes place. I didn't need to say a lot about what was going on. People can just feel it by themselves," she said at that time.

The film was shot at the Dongducheon camp town, located some 40 kilometers north of Seoul, where the murder took place. (Yonhap)