After being brutally murdered, 14-year-old Susie Salmon watches from heaven over her grief-stricken family -- and her killer. As she observes their daily lives, she must balance her thirst for revenge with her desire for her family to heal.

Thirty years ago, aliens arrive on Earth. Not to conquer or give aid, but to find refuge from their dying planet. Separated from humans in a South African area called District 9, the aliens are managed by Multi-National United, which is unconcerned with the aliens' welfare but will do anything to master their advanced technology. When a company field agent contracts a mysterious virus that begins to alter his DNA, there is only one place he can hide: District 9.