An alien from a race dying of a disease crashes on Earth and assumes the body of a human. She then precedes to take blood from other humans to send back to her planet. Things get complicated when she starts to feel human emotions and other aliens show up to exterminate her. Her only hope lies with a curious and helpful doctor. An alien from a race dying of a disease crashes on Earth and assumes the body of a human. She then precedes to take blood from other humans to send back to her planet. Things get complicated when she starts to feel human emotions and other aliens show up to exterminate her. Her only hope lies with a curious and helpful doctor. An alien from a race dying of a disease crashes on Earth and assumes the body of a human. She then precedes to take blood from other humans to send back to her planet. Things get complicated when she starts to feel human emotions and other aliens show up to exterminate her. Her only hope lies with a curious and helpful doctor. An alien from a race dying of a disease crashes on Earth and assumes the body of a human. She then precedes to take blood from other humans to send back to her planet. Things get complicated when she starts to feel human emotions and other aliens show up to exterminate her. Her only hope lies with a curious and helpful doctor.