Her daddy in tow, Trixie hurries to school to show off her one-of-a-kind Knuffle Bunny. But an awful surprise awaits her: someone else has the exact same bunny! Thus begins an exciting, frustrating and ultimately revelatory twenty-four hours of squabbling, teacher-enforced bunny "time-outs", bedtime realizations, late-night phone calls and a special middle-of-the-night encounter.