In 2016, a young Australian filmmaker began documenting amateur inventor Peter Madsen. One year in, Madsen brutally murdered Kim Wall aboard his homemade submarine. An unprecedented revelation of a killer and the journey his young helpers take as they reckon with their own complicity and prepare to testify.
The story follows Boris, a charismatic tour guide who unexpectedly reunites with his estranged father Julián. Their tense and emotional encounters explore past wounds and the possibility of forgiveness.