Shadow Kid Afraid of Invisible Mom

by Samantha
(San Antonio, Texas, USA)

My aunt saw this really cool movie called something like 'The Shadow Kid' (but not) where three teenagers are driving late at night through Texas and they stop to sleep in a small shack.

In the middle of the night, a small boy sneaks in the shack and everyone gets freaked out because he's chanting 'Don't let her get me'. Then his mother walks in and one of the teenagers is recording her, but she is invisible. The teenagers then become possessed.

Any ideas on the title?