synopsic
/ˈsɪnəpˌsɪs/Definitions
1. noun
A brief summary or outline of a piece of writing, such as a novel, play, or movie.
“The movie trailer provided a good synopsis of the plot, so I decided to watch it.”
2. adjective
Relating to a summary or outline.
“The synopsic guide helped me quickly understand the main points of the chapter.”