Complex sentence: Forty years later, in 1982, the Dean opens the drawer and takes out a box and opens it, he takes out his mom's shoes, her dress, which is covered in blood, and a photo of her, crossed out.
Split into simpler sentences: Forty years later, in 1982, the Dean opens a drawer, removes a box and opens it. He takes out his mother's shoes, her dress which is covered in blood, and a photo of her, crossed out.