22 year old Marnie is not OK. She may just seem quiet to others, but the noise inside her head is relentless. For the last 2031 days, she has been assailed by an incessant barrage of graphic x-rated thoughts that intrude, at the most inopportune of moments, on her day to day life. Whether she’s sitting exams at university, waiting at a bus stop or passing strangers on a street, her life is interrupted by irrepressible sexual thoughts. Marnie has no idea what’s wrong with her – Is she gay? A sex addict?? A pervert??? Why is she plagued by these mental images and what do they mean? Is that who she really is, deep down?