The Postal detectives are back and after eight years of working together in the Dead Letter Office, Shane and Oliver are finally getting married. As they prepare for their impending nuptials, they receive a letter covered in syrup from a mom looking for someone named Fred. Naturally, they won’t rest until they’ve solved the case, even if it puts the wedding at risk. Eric Mabius, Kristin Booth, Crystal Lowe, and Geoff Gustafson star in the eleventh film of the hit Hallmark Movie series - Signed, Sealed, Delivered: The Vows We Have Made.