Actress Wang Ji Won has joined the cast of the film "One Line." The 27-year-old actress will play Ha Seon, a clever, beautiful con woman.

The film's story focuses on mortgage fraud. In "One Line" Z:EA singer and actor Im Si Wan plays the leader of a ring of con artists who attempts to pull off a major case of fraud. Wang Ji Won plays his partner.

The film will provide Wang Ji Won with her first movie role. Wang did not start out as an actress, having studied ballet with the Royal Ballet School of England and performed as a member of the Korea National Ballet in 2009. She only began acting in 2012 and since then has appeared in a few popular dramas.

She appeared in "Good Doctor," "The Heirs," I Need Romance 3" and played Jang Hyuk's longtime ballerina girlfriend in "Fated To Love You." Her last drama appearance was in "Divorce Lawyers In Love."

"One Line" may be Wang Ji Won's first film but it's also a first opportunity for Im Si Wan, as he gets to play a bad guy. Even though his career in the past few years has been very successful, he never had the chance to play a villain before.

Im won praise for his role in the 2014 surprise hit "Misaeng." In that cable drama he played Jang Geu Rae, a former baduk player who tries to make it in the cutthroat office environment of a trading company. Jang Geu Rae struggles against impossible odds to make a life for himself. His quiet desperation resonated with Korean office workers.

Im Si Wan won several awards for that role, including a prestigious Baeksang Arts Award. The 27-year-old actor also earned praise for his role as an unjustly accused prisoner in the film "The Attorney." Im can be seen this year in the film "Thoughts Of Older Brother." In that film he plays a second lieutenant during the Korean War.

Yang Kyung Ho, who previously won a short film award, will direct "One Line."

Supporting actors are currently being cast and filming is scheduled to begin in January.