R | | Horror, Thriller
A family's serene beach vacation turns to chaos when their doppelgängers appear and begin to terrorize them.
During the filming at the Santa Cruz Beach Boardwalk, the rides were all filled with dummies, then CGI was used to create moving people.
When Gabe was talking to Abby in their bedroom, he was in his plaid shorts. Then Jason got to tell them about the outsiders, they moved right away to the front door. Gabe was already in his trousers when he got out.
The names of the Tethered are colored red in the credits.
$71,117,625 (USA) (24 March 2019)
$166,181,620 (USA) (18 April 2019)