A parasitic alien soul is injected into the body of Melanie Stryder. Instead of carrying out her race's mission of taking over the Earth, "Wanda" (as she comes to be called) forms a bond with her host and sets out to aid other free humans.
A seductive stranger prowls the streets of Glasgow in search of prey: unsuspecting men who fall under her spell.
A young man arrives at the last hometown of painter Vincent van Gogh to deliver the troubled artist's final letter and ends up investigating his final days there.
