The latter is known for dealing with BDSM quite graphically, but the former makes things worse by having kidnapping and threats of violence play a role within the sex. It's a Polish erotic thriller/drama, and is also based on a series of books that feature explicit content that proved controversial, though it's fair to say that 365 Days pushes things further than Fifty Shades of Grey.
Among all the non-English movies and shows available on Netflix, few titles created as much of a stir as 365 Days.
