Heir & Spare: Charles & Anne (2023)

Heavy is the head that wears the crown, but heavier is the burden of being next in line. The British Royal family is built on the traditional duty until death. For every heir to the throne, there is a spare. Charles knew he'd become King, following in his mother's footsteps, leaving his sister Anne behind. Despite their close childhood bond, becoming the reigning Monarch would definitely divide the pair. When one steps up, the other must step back.