It's a very good film overall that's fun to watch, with a surprisingly intriguing premise. The acting is also pretty good, and the characters actually have some personality (with Jamie Lee Curtis arguably being the least-distinct in my opinion). Leslie Nielson is a treat to watch, even in a small (but top-billed) role, but my favorite performances are probably from Eddie Benton and Joy Thompson. Sheldon Rybowski was decent too, but the rest of the boys were so forgettable. The plot moves very slowly, but gets exciting once it moves to the prom, and the twist ending (and the fact that the real killer is a surprise) is interesting and ties to the pretty sad backstory. The chase scenes are exciting and one character's death (won't spoil, but it's near the very end) is pure gold. The Canadian disco music is also pretty good, if a bit cheesy, and fits the movie well. Overall, while the film isn't terribly memorable, it's superior and more creative than most slasher films of the period, and I recommend it for horror/slasher fans.