Caleb, a wealthy businessman, is shocked to meet a janitor who looks just like his late mother, Sarah. After a DNA test confirms she is his biological mother, Caleb confronts his father, William, who had lied about her death 28 years ago.

Michelle, the janitor, reveals she has amnesia and cannot remember anything from the past 20 years. Caleb shares his suspicion, “You look a lot like my late mother,” and convinces her to take a DNA test, which confirms their relationship. Determined to uncover the truth, Caleb devises a plan to confront his father.

Caleb sends Michelle to William’s house under the pretense of selling cosmetics. William, shocked by her resemblance to his late wife, grows suspicious. Later that night, William sneaks into Michelle’s house with a knife, but is caught by the police. In the interrogation, William confesses to pushing his wife off a cliff to avoid a divorce, believing she had died.

The revelation shocks Caleb, who had been visiting the grave of a stranger for years. He finally learns the truth about his mother’s disappearance and his father’s crime.