Cat on a Hot Tin Roof is the story of a Southern family in crisis, especially the husband and wife Brick and Margaret (usually called Maggie or "Maggie the Cat"), and their interaction with Brick's family over the course of one evening gathering at the family estate.
The party is to celebrate the birthday of patriarch Big Daddy Pollitt, "the Delta's biggest cotton-planter" and his return from the Ochsner Clinic with what he has been told is a clean bill of health. All family members (except Big Daddy and his wife, Big Mama) are aware of Big Daddy's true diagnosis: he is dying of cancer. His family has lied to Big Daddy and Big Mama to spare the aging couple from pain on the patriarch's birthday but, throughout the course of the play, it becomes clear that the Pollitt family has long constructed a web of deceit.
Maggie, determined and beautiful, has escaped a childhood of poverty to marry into the wealthy Pollitts, but finds herself unfulfilled. Brick has not slept with Maggie for a long time, which has strained their marriage. Brick, an aging football hero, infuriates her by ignoring his brother Gooper's attempts to gain control of the family fortune. Brick's indifference and his drinking escalates with the recent suicide of his friend Skipper.
Through the evening, Brick, Big Daddy and Maggie—and the entire family—separately must face down the issues which they have bottled up inside.