Robert Neville only survivor in New York city and an army scientist that has immunity to the virus has decided to find a cure for the plague... .
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although it's a zombie movie but the story and the plays are much better. the zombies can somehow think they can make traps they can almost love, the other difference is light, these zombies like vampires are vulnerable to light and only come out in night and during the day they go to dark places. other thing i liked is that the only survived man sends a radio message every day in the midday when sun is at the highest point to find any other survivors, the movie has some notable points and I'm not going to spoil it.
related : I Am Legend