To the outside world, it can appear something of a joke, but Tourette's is no laughing matter for those living with the syndrome. Sufferers' lives are forever marred by the constant, uncontrollable urge to shout, swear and tic inappropriately. In this remarkable story, we meet Jess, who finds it impossible to control the urge to say the word 'biscuit'. She says it hundreds, if not thousands of times every single day, often while punching herself in the chest. Jess invites Sunday Night into her life to experience what it's like to live with Tourette's. It is heartbreaking television. Rahni Sadler also meets an amazing young jazz singer who swears and tics uncontrollably off stage, but transforms into a composed and talented songstress on stage. This story will forever change the way you think about Tourette's.