James Fanizza writes, directs and stars in Sebastian but does not in fact play him. He plays Alex, the guy who meets Sebastian (Alex House) and initiates a fling - this despite that he has a boyfriend, a boyfriend who just happens to be Sebastian's cousin. They both agree to feel bad about what they're doing, but they don't consider not doing it. Alex is an Argentinian student in Toronto for just one week; both know that the relationship must end when he catches his flight back home. But the affair is irrepressible. They're falling for each other whether or not they say the words, and it's the kind of relationship that changes them, unlocks things hidden deep inside (and who can resist a boy with a dark and unspoken past?).