Lee Ma Ri is a famous actress that is actively pursued by four men. The four men come from different backgrounds and have different aspirations. One is a literature graduate student who dreams of becoming a writer, another is a famous photographer, the third is the heir to a major chaebol family, and the last man chasing after Ma Ri is a young executive who works at a media corporation.

A touring program producer Min-joo, takes notes in her journal whenever and wherever she travels, so one day she can show all those amazing places to her longtime lover Hyun-woo. Finally Hyun-woo passes the bar exam and proposes to Min-joo. However, not long after, Min-joo dies when the department store where she was waiting for Hyun-woo collapses. Hyun-woo becomes a prosecutor, but when he digs too deeply in a sensitive political case, he ends up in detention. While in detention (five years after Min-joo's death), Min-joo's parents send him Min-joo's journal, which gives him a road to trace all the memories of his lost lover.

Reminiscent of the film FREQUENCY, DITTO follows high-school students So-eun (Kim Ha-neul) and In (Yoo Ji-tae) as they realize that they can never be together. So-eun, living in 1979 South Korea, begins making transmissions on a ham radio and contacts In, who unbeknownst to her lives in the year 2000. The two find that they attend the same high school, and still not aware of the time warp, strike up friendship and a romance. In addition to the timeless love story, this film is significant in its exploration of cultural identity and politics.

Hye-jin's (Kim) homecoming should have been a joyous occassion. She was especially happy to see her childhood friend again, the shy Eun-ju (Ha). However, when a secret is revealed, harsh words are exchanged. These words deeply affect Eun-ju and,in the next scene, we see her plummeting from a 30-story building. In a flashback provided by Seon-ae, we learn that the ghost of Eun-ju is hunting down all of Hye-jin's friends and killing them. Is this possible or is a more worldly force at work? What is this mysterious tape that everyone is asking about?

Please be aware that this movie is rated R and may contain material not appropriate for all ages.