Laura has it all: a glittering career, a loving husband, and her precious son, Daniel. But her perfect life unravels when Daniel brings home Cherry, a girlfriend who changes everything. After a tense introduction, Laura becomes convinced Cherry is hiding something. Is she a manipulative social climber, or is Laura just paranoid? The truth is a matter of perspective.

An English teacher begins to hear a low humming sound that no one else around her can hear.