Ruined in example sentence
it had all the ingredients, but is ultimately ruined by two thousand times overused clichés which seem to have become fashionable again nowadays (see, for instance 'Brokeback Mountain' or the French 'Le clan'):the first one: the old homosexual teacher, OF COURSE, had to die at the end (the fact that is is a motorcycle accident and not a bashing doesn't matter, finally...); the fact that everyone mourns him at the end does not matter, the moral is safe, he finally 'paid for his sins'.