Dokument inifrån: Det svenska styckmordet.

40 years ago, a woman was found dismembered under a highway in Stockholm. It was the beginning of what would become Sweden's strangest and most controversial legal process: the Catrine da Costa case. The two doctors Teet Härm and Thomas Allgén were identified as guilty of the dismemberment. But how did the legal system actually come to the conclusion that they were guilty?