The subtitles/translation was a disgrace. From what I could understand from the "translation", the entire trial was on the sex life of the accused. There are a plethora of good crime writers on this planet, the scriptwriter should have read a couple of those novels before attempting to write the script.
A person can't go to jail because he or she has a colourful sex life, any competent defence lawyer can get the said person off the hook.