In the gripping supernatural mystery series Oops! Mysterious Sounds, shy student Phodduang tries to hide his unrequited crush on his straight best friend by entering a fake relationship with Jinna, an attractive but haughty mutual friend. However, their pretend romance takes a dark turn when their famous friend, Anda, is suddenly found dead. Soon after the tragedy, Phodduang and Jinna stumble upon a secondhand pair of earphones that miraculously connects them to the world of the dead, allowing them to hear mysterious whispers. Forced into an unlikely partnership, these two rivals must work together to decode the supernatural voices and investigate Anda's murder. As danger escalates, they realize their mutual dislike is fading, and an unexpected romance begins to bloom. Adapted from the popular web novel by Karnsaii, this thrilling blend of suspense and romance is a must-watch. Will they solve the mystery before they become the next victims?