Terrible.
Terrible.
It's just random people being killed in ridiculously convoluted ways for no reason whatsoever. You hope there'll be some kind of twist at the end to explain why they're being killed but nope, it's just a guy on the phone doing it for shits and giggles. They don't even bother to make it interesting. It's just a pointless series of deaths that means nothing to anyone.
Oh look, a bunch of people I don't care about die for reasons which aren't explained.
Absolutely atrocious crap.