Mr.CEO, your mute wife calledEpisode 4

To avenge the car crash eight years ago, Chris fakes‑muteness and marries Nathan Sterling, the illegitimate son, in another’s place.She wages her revenge using a voice‑changer phone from kidnappers, unaware Nathan has long seen through her disguise. Worse still, he is the elusive CEO of MART Entertainment she has secretly hunted.As her secrets unravel layer by layer, the two shift from wary sparring partners to a powerful alliance. Together they unearth the wealthy family’s dark conspiracy, finding redemption in each other and rising to shine brilliantly.