Watch The Sitter (2017) HD Full Movie Free on SolarMovie. Watch The Sitter (2017) online free. Charlotte accepts a job at a large country home to watch a couple's cat whilst they are away. Howeve...Charlotte accepts a job at a large country home to watch a couple's cat whilst they are away. However the Gothic old house may contain more than just a cat, as seemingly supernatural forces take hold of Charlotte's mind and body.