Richard, a janitor at a busy bus station, notices a distressed woman with three young kids. She tearfully tells him she’s fleeing an abusive husband and needs help getting to New York. Moved by her story, Richard buys her a bus ticket with his own money. The next morning, he and his daughter Amanda find dozens of mysterious boxes on their doorstep, along with a note thanking him and urging him to sell the contents.
Curious, Amanda opens one of the boxes and accidentally breaks a vase—revealing a real diamond hidden inside. Unsure of what to do, Richard takes it to an antique dealer named Mr. Lambert. Though Lambert claims it’s worth $100,000, he offers just $10,000, raising Richard’s suspicions. Trusting his instincts, Richard walks away, only to return home and discover Amanda has been kidnapped.
A ransom note demands the diamond in exchange for Amanda’s life. Richard traces the return address on one of the boxes and confronts the man holding his daughter, who insists the diamond is fake. Realizing Lambert must’ve switched it, Richard races back to the shop. There, he exposes Lambert’s scam and learns that both men are partners in crime—the diamond was stolen from a billionaire and now being hunted by the police.
Richard ties Lambert up and leaves a note for the authorities, then bluffs the kidnapper into rushing to the shop by saying Lambert betrayed him. While he’s gone, Richard rescues Amanda. Police, tipped off by Richard’s note, arrest both criminals soon after. Though Richard fears he’ll be in trouble for not reporting the diamond earlier, he’s just grateful his daughter is safe.