Decent little thriller. Basically, a killer terrorizes a group of friends trapped in a house during a violent thunderstorm. He's trying to cover up a corporate secret that resulted in the death of thousands. The friends who have gathered at the house after the death of the lead's brother, have to figure out what the killer is after while also trying to stay alive.Great set up with the bad guys (Margot Kidder is ultra-creepy!) The other characters feel very real, each with their own problems and issues which boil over when it all hits the fan. The story is suspenseful, with layers of mystery that get peeled away little by little. It's a bit uneven at times, but all in all, a slow simmer to a nice showdown at the end. I enjoyed it.