A socially awkward, environmentally-conscious teenager named AJ is dragged to a coastal holiday park by her painfully 'normal' family, where she becomes unexpectedly captivated by a chlorine smelling, sun-loving lifeguard named Isla.

At an elite boarding school for girls, six friends jokingly engage in a late night ritual, calling forth the spirit of a dead former student who reportedly haunts their halls. Before morning, one of the girls is dead, leaving the others wondering what they may have awakened.