My Husband's Secret Cargo

Jane Lee notices Ethan Carter acting abnormally. She hears a woman's voice, sees him with a woman in the cargo bay. Suspecting cheating, Jane calls police. They find only a silicone doll, but Jane's suspicions persist. Jane smashes a hidden compartment, finding her mother-in-law, "dead" for six months. Mother-in-law has a terminal illness; she faked her death. Ethan secretly cared for her in the truck. Jane understands. Family reconciles, sells the truck, returns home to care for her.