My Undercover Chef follows Marwin, a suspended police detective who takes on an undercover mission as a sous-chef at a restaurant frequented by drug dealers. His goal: earn their trust, expose their operations, and capture their mysterious leader. Just as things start to go according to plan, Khing—a sharp YouTuber and the restaurant owner's granddaughter—starts to suspect him. At first, she becomes an obstacle, but in time, Marwin enlists her help to bring the gang down from the inside.