At first I really liked this. It has a whole lot of potential. The graphics aren't too bad, the story in itself is actually interesting once you realize what's going on. The whole point and click aspect is actually really nice as well.
However, all of this potential is wasted by a few things. Lack of grammar here really took away from the story (Maybe you could try using a translator? I don't know, I know it isn't your fault if English isn't your first language--But it really takes away the game for some people). Another thing is, for some reason, the keys stick. I need to click multiple times to open the door or attack someone, which is terrible when you have the running zombies coming at you. There's also a glitch where, no matter where you go in a room, you just keep getting the same item you got from your first interaction, which is also substantially annoying if it's something useless and you're trying to get a quest item.
I think if you improve the glitches, mechanics and possibly grammar, it'll be much better. Honestly, if it's a good game, grammar can be overlooked, so try hard on the first two!