What is the master plot in The Metamorphosis?

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The Metamorphosis
is about the strange life of Gregor Samsa. He begins the story as a disgruntled employee
and a generally unhappy man. His unusual transformation from man to insect captures the
reader's attention. Gregor is responsible for taking care of his family's financial
needs, so his transformation leads to some interesting consequences. Gregor's sister
tries to help care for him while his father is far more antagonistic. In fact, his
father causes him physical injury by hitting him with an apple. Many aspects of this
story, particularly the father-son relationship, mirror Kafka's own life. While most
critics agree that the structure of the story is above reproach, they question the
story's meaning. Some believe that it is a metaphor for the human condition. Others see
a deeper, spiritual meaning. Many believe it is a story designed to solicit an emotional
response from readers. We often identify with the emotions portrayed in the story such
as loneliness and isolation.

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