Unconventional thrillers that shake up the genre can have audiences on the edge of their seats, unsure of how things will play out in the end. While many tropes and cliches in the thriller genre mean observant viewers will be quick to uncover the mystery and decipher how things will pan out before the credits roll, some actors, directors, and writers have toyed with these conventions to produce some truly unconventional movies. In some instances, these experiments were so influential that they left an undeniable mark on cinema as a whole.
https://screenrant.com/unconventional-thriller-movies-changed-genre/