This treatment sheet provides information for a short film called "Obsidian" directed by Beth Davies. It includes a cast and crew list led by Jonathon Davies as the main character seeking revenge for his murdered sister. The plot involves Jonathon discovering who killed his 15-year old sister and going after the murderer on his motorbike. The technical details outline two filming locations - an allotment for stunt scenes and a family home for interior shots. Props include items for cooking, a motorbike, and phones. Costume details are also provided for the main characters.