It Follows(2014) Page

: Many critics interpret the film as an allegory for sexually transmitted infections (STIs) , sexual paranoia, or the loss of innocence during the transition to adulthood. Others see the entity as a representation of the inevitability of mortality and death.

: Once infected, a person is followed by an entity that can take the form of anyone—a stranger, a friend, or even a loved one. If the entity kills the person it is currently following, it begins pursuing the previous person in the "chain" again. It Follows(2014)

: The synth-heavy score by Disasterpeace is widely praised for its homage to 1980s horror classics, particularly the work of John Carpenter. It Follows (2014) - IMDb : Many critics interpret the film as an