In the future, mankind lives in endless underground cities and free will is mitigated by medication that controls human emotion. But when THX 1138 (Robert Duvall) and LUH 3417 (Maggie McOmie) stop taking their medication, they wake up to the bleak reality of their own existence. And, in a world where physical intimacy is illegal, they both fall in love and are now fugitives. Additional music added by fan