Fear itself is certainly freaky and has all the ingredients and it has this way of being pretty predictable until the last minute were it completely turn on you.
the first episode? not bad. the second? a little better.
my guess is it'll get better and better as they go but it could go south too if by that it gets to predictable like the last one (2nd) until it redeemed itself in the end. watch it, its certainly worth it and it can get you through the summer easily