Follower (2021)

Yeon-hee seems to be in the perfect marriage, living the perfect life. At least that's how it seems from the outside. But the reality is not how it seems. Her husband, Sang-beom, who runs a high-end Italian restaurant, has been in a state of frequent drunkenness these days as restaurant management has become difficult. And there's another thing that bothers Yeon-hee: SNS account impersonation. Someone impersonated her and started putting up strange posts on her account. At first she thought it's a simple prank, but seemingly dangerous posts started showing up which sudders Yeon-hee. She decides to seek the help of her high school friend Ui-chan who is now a detective. Soon after, Yeon-hee goes missing. Ui-chan believes that her disappearance is related to the account impersonation. In the course of the investigation, the fact that her husband is subscribed to multiple life insurance policies in Yeon-hee's name, and that he has been having an affair with the restaurant manager Hye-ju iare revealed. Then one day, a burnt out car is found in which Yeon-hee's body is found. And Sang-beom receives the huge insurance payout. On that same day, Sang-beom is found dead. And Hyo-ju disappears without a trace. Could the SNS impersonator be behind all of this? What clues are Ui-chan missing?