There is a review of Franz Kafka's "The Metamorphosis" on the SparkNotes website. The review covers a plot overview, a character list and context. There is also a three-part analysis of the story, as well as essay topics.
The website provides insight to the time "The Metamorphosis" was written in the context section. The plot overview gives a detailed summary of the events of the story. It discusses themes such as The Absurdity of Life and Alienation in the Themes, Motifs and Symbols section. There are also sections that explain key facts and important quotations. The three-part analysis explains in detail the important takeaways of the work and why it is relevant today.