Niagara, Niagara is a 1997 drama about the cross-country trip taken by a young woman with Tourette's syndome and her lover. Marcy (Robin Tunney) leads an isolated existence due to the fact that she suffers from Tourette's syndrome. The disease causes her to act out in extremely anti-social ways, both physically and verbally. Her life seems to change for the better one day when she meets Seth (Henry Thomas) while shoplifting at a local department store. Like her, he supports himself by engaging in a life of petty crime. Immediately smitten, the two decide to go on a road trip together to Toronto. Tragedy strikes, however, when a pharmacy refuses to fill one of Marcy's medical prescriptions. Angry, she and Seth decide to rob the pharmacy, which results in Seth being shot. As they flee, they are picked up by a kindly trucker named Walter (Michael Parks), but Marcy's behavior grows increasingly violent in the absence of her much-needed medication.