First Season. It was fun. The finale of course went off the deep end as slashers often do, with this ridiculously elaborate set up that gets the final killer off because she's the smartest, most cunning, and slippery girl in the Kappa House. There's another killer who also involved in getting his hands bloody, as the Red Devil costume can be a disguise for anyone to use if needed. Boone, Rodger and/or Dodger, Gigi, Taylor Swift fangirl, Sam, Candle nut, Earl Grey, Caufield, and the Dean's husband: just some to head off the mortal coil with Red Devil so often to blame. Even the first student mascot to wear the Red Devil and Ice Cream Coney disguise just happened to be shit outta luck. And don't even get me started on the poor pizza delivery guy who paints the sorority house red when the final killer straps a bomb to him, with a timer rigged to explode!
Pete was an ongoing investigator throughout the first season with Grace. There was this romantic development between them. In fact, at the very end Grace is about to offer herself to Pete, a ready virgin willing out of great affection and maybe even love. Then Pete bears his soul, and lays open his secrets.
That Pete was the Red Devil, killing Boone and one of the Rodger/Dodger twins, escaping near death to the twins in Red Devil costumes, almost about to unveil the final killer to an enraged Grace when he's interrupted...By the Red Devil.