Well, it's a murder mystery, so it could really only go for one season, with the same characters and place and background and everything. So not surprising that it's been canceled.
It also picks up after the first few episodes, taking away that cliched feeling. The plot gets more involved, and the acting gets better....And some characters are just pure creepy. Plus some of the deaths get creative. There's one that still makes me shudder just thinking about it.
What I find cool is that the actors themselves don't even know what's coming. They get the script for one episode at a time, and they have no idea whether they're going to live to see the next episode. Or how they're going to die. They also don't know which one of them is killing everyone else (meaning the actor playing the "bad guy" doesn't even know he/she is the bad guy).
It's an interesting way to film a show. Makes for some sketchy first episodes, but after the characters are established a little more, it starts getting intense.