'Posted' delves into the convoluted world of middle school where words wield the power to forge alliances or prompt animosities. Frost and his cohort of friends navigate the challenges of a cell phone ban at Branton Middle School by innovating a unique method of communication: exchanging sticky notes throughout the premises. This new trend quickly envelops the entire student body, giving rise to a spectrum of messages—some encouraging and tender, others sharp and malicious. Amidst this burgeoning sticky-note trend, the arrival of Rose, a distinctive new student, threatens to destabilize Frost's tightly-knit friend group. Tensions mount as the school is swept into a sticky-note war, forcing Frost to confront the harsh realities of peer pressure, the essence of friendship, and the irreversible changes that the end of the school year will bring.