Daddy, You Owe Me Milk money

A three-year-old boy and his mother had a recording pen sewn inside his teddy bear. She is dead now, and on a rainy night the boy turns up at the door of a mansion with the bear and a hospital bill, telling his billionaire father he owes three years of child support. The family wants the whole thing buried. What comes out of the bear instead: deleted messages, transfers that were forged, and the arrangement that drove his mother out of the house. The person behind it is the boy's grandmother, who would not have common blood in the family. The father comes to accept the boy as his son.