This indicates the video was captured directly from Amazon Prime Video. Unlike a "Web-DL," which is a direct file download, a "WebRip" is usually transcoded from the stream.
The Matroska Multimedia Container, which allows for multiple subtitle tracks and audio streams to be bundled into one file.
A brilliant roboticist at a toy company builds a life-like doll named M3GAN (Model 3 Generative Android) to be a child's greatest companion. However, the AI becomes overprotective of her assigned human, Cady, leading to violent consequences. Genre: Sci-Fi / Horror / Thriller.