In 2016, a young Austrialian 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 murder of Kim Wall, known in Denmark as Ubådssagen, took place on 10 August 2017, after Swedish freelance journalist Kim Wall boarded the midget submarine UC3 Nautilus, in Køge Bay, Denmark, for a pre-arranged interview of its owner, Danish entrepreneur Peter Madsen.
