The Duffer Brothers prepared a script that would essentially be similar to the series' actual pilot episode, along with a 20-page pitch book to help shop the series around for a network.[16] They pitched the story to a number of cable networks, all of which rejected the script on the basis that they felt a plot centered around children as leading characters would not work, asking them to make it a children's show or to drop the children and focus on Hopper's investigation in the paranormal.[2] In early 2015, Dan Cohen, the VP of 21 Laps Entertainment, brought the script to his colleague Shawn Levy. They subsequently invited The Duffer Brothers to their office and purchased the rights for the series, giving full authorship of it to the brothers.