With all four 2020 films in the “Welcome to the Blumhouse” series available this week—the second half will be launched at a TBA time in 2021—it’s easier to see the complete picture of what Jason Blum and Amazon Prime Video are offering with this feature film anthology. The first two films, “Black Box” and “The Lie,” were disappointments, and the second pair only barely rises above that standard. While it’s slightly promising at least one of the offerings here has some elements worth recommending, both of these films suffer from a common problem in Blumhouse’s “Into the Dark” series in that they don’t justify a feature-length runtime. They both feel distinctly like episodes of an anthology series that have just been pushed and pulled to meet a 90-minute requirement. At least one of them finds some interesting characters and themes to explore within that stretch; the same can’t be said for the other one.