Overview
Phone (; released in the Philippines as The Phone) is a 2002 South Korean supernatural horror film written and directed by Ahn Byeong-ki and starring Ha Ji-won and Kim Yoo-mi.
Plot
After writing a series of articles about a pedophilia scandal, the journalist Ji-won often receives threatening calls on her cell phone. Hence she changes her number and moves to an empty house which is owned by her sister Ho-jung and Ho-jung's husband Chang-hoon. One day, Ho-jung's daughter Young-ju answers an anonymous phone call to Ji-won's new number, then screams and passes out. Days after, Young-ju begins to show a disturbing attraction for her father and jealous rejection towards her mother. Meanwhile Ji-won gets more anonymous calls and sees a long-haired ghost playing Beethoven's "Moonlight Sonata" on the piano. She finds out that her number originally belonged to a missing teenager, Jin-hee, and that its two subsequent owners had died mysteriously in unusual circumstances.
Ji-won visits Jin-hee's mother at their home and finds a diary and a picture of Jin-hee and Jin-hee's best friend, Sang-mi. Ji-won goes to Sang-mi who is now-blind and deaf. Since Sang-mi was haunted by Jin-hee's spirit, she decides to stab her own eyes and ears to make it leave her. She says that before she went missing, Jin-hee was obsessively in love with an older man whom she tried hard to practice "Moonlight Sonata" to impress. However they broke up even though she was pregnant with his child. Ji-won explains to Young-ju's parents that Young-ju could be in danger, but Chang-hoon's refusal to accept it upsets Ji-won. In Ji-won's flashback, it is shown that Ho-jung had been infertile, so Ji-won gave Ho-jung her egg for in vitro fertilisation in order to conceive Young-ju. In this sense, Young-ju is not Ji-won's niece but her biological daughter, whom she loves and cares deeply for.
Ji-won continues her investigation into Jin-hee's diary. In surprise and shock, she learns that Jin-hee's lover was indeed Chang-hoon. He used to cheat on his wife by bringing Jin-hee to the house Ji-won is staying at, but soon after Jin-hee became overly-attached, he, despite her pleas, broke it off, as he never wanted to leave his family. Jin-hee found out she was pregnant and called Chang-hoon repeatedly but he ignored her. Believing that Chang-hoon has something to do with Jin-hee's disappearance (more likely death), Ji-won threatens to tell his wife if he does not cooperate.
From Wikipedia (CC BY-SA 4.0).