In both films we see the characters change their identity , this shows that Duplicate is similar to real media products as it follows and develops the same type of storylines that real media products like The Stepfather. Both are in the bathroom doing their own things but we wonder why shes putting on the wig and why his wearing contact lenses.
Another similarity with the two openings, again making Duplicate, both making breakfast, coffee etc
Surprise of dead body
This is a major turning in both of the openings the first being the change of identity. This shocks the audience both are very similiar.
Both thriller is targeted to the older generation.