Twas the Episode Before Christmas
Mary and Joseph Goodman wake up in the middle of the night. Two men have broken into their apartment. They force Joseph to drink some alcohol and then throw him over the balcony of his apartment, killing him. Mary escape with their baby in the confusion.
Mary goes upstairs and leaves the baby in Agnes DiPesto's apartment. Agnes was in the middle of doing laundry and left the door to her apartment open. Mary disappears, leaving Agnes to find the baby without a clue as to where it came from.
David and Maddy have questions for Agnes, the next day, when they find her with a baby. She tells them what she knows. They go back to her apartment looking for answers. In the lobby of her building they meet three detectives names King. The three Kings are looking for the Mary and her baby and tell Maddy and David about what happened to Joseph.