Why are you doing this to me?|Feb. 17, 2023|South Korea|117 Min.|16+
Genre: Mystery;Thriller
Description: Lee Na-Mi, portrayed by Chun Woo-Hee, is a diligent marketer at a start-up company. In addition to her office job, she works part-time at her father’s Café Mizi. One day, she loses her smartphone on a bus, and it is picked up by a stranger. When she attempts to retrieve it using a friend’s phone, Oh Jun-Yeong (Im Si-Wan) manipulates the situation by using a voice-changing app to avoid being recognized. He directs her to a repair shop to collect her phone, where he secretly installs spyware after gaining access to her password under the guise of fixing the screen.
Unbeknownst to Na-Mi, every action, conversation, and message on her phone is now monitored by Jun-Yeong. He gradually infiltrates her personal life, raising suspicions from her father. As they interact, Na-Mi becomes curious about Jun-Yeong, believing they share common interests. He claims to work for a software company and pretends to assist her with the spyware issue. However, Jun-Yeong leaks confidential information from her work, leading to her dismissal. He goes further, framing her best friend as the culprit behind the spyware, successfully isolating her from those closest to her.
Meanwhile, Detective Woo Ji-Man (Kim Hee-Won) investigates a murder case involving a body discovered on a remote mountain. Evidence points to his own son, Woo Jun-Yeong, as the prime suspect. The discovery of seven additional victims and the retrieval of their smartphones further implicates Jun-Yeong, including the latest victim, Eun Mi-gyeong, who authorities initially believed had disappeared.
Cast director: Kim Tae-joon
Cast actor: Chun Woo-hee, Yim Si-wan, Kim Hee-won, Park Ho-san, Kim Ye-won, Jeon Jin-oh, Oh Hyun-kyung, Ryu Sung-hyun, Jeon Ik-ryoung, Kim Joo-ryoung
Original name: 스마트폰을 떨어뜨렸을 뿐인데