Over six years and following the passage of the seasons, Alexander Murphy’s lyrical and intimate observational documentary takes us into the home of an Irish Traveller family, eking out a tenuous existence in a tiny mobile home illegally parked on the side of a country road. Given extraordinary access to private moments, Murphy follows the ten children as they play in a pastoral heaven, while their parents navigate the everyday challenges attempting to preserve their way of life. Mum is keeping house for ten in a tiny mobile home, constantly cooking and cleaning up while making sure the children are at school and planning for their elaborate communions. Dad is living his version of a Traveller dream with harness horses and whippet dogs hunting rabbits at night. Looming is eviction tempered by what may be the last offer of social housing on an estate where this life will be inevitably transformed. Choices are to be made while other legal woes may just roll over them. The children live both happily in but also outside of this fragile life while also half attuned to the shifting currents. Meanwhile time is preparing to repeat itself. Of his relationship with the family, director Murphy says, “I met them in 2020 and finished filming in March 2026. This film represents an entire chapter of my life, so I needed to love them.” Tin Castle immerses us in scenes of everyday life that remind us of our common humanity.