A lively, resourceful young woman nicknamed Tish and her friends recount a series of episodic, often comic mysteries in which she becomes entangled with hospitals, nurses, spiritualist séances, and minor crimes. The tales mix light suspense and amateur sleuthing with domestic wit, as misunderstandings, hoaxes, and odd characters are unraveled through conversation and observation. Presented as personal reminiscences, the episodes emphasize character interaction and humorous detail over formal detection, offering brisk, entertaining sketches of social life and small-scale mystery.