See the original [REC] and the sequel [REC] 2. Stop right there. Forget 3 and 4. For that way, disappointment comes.
[REC] 4: Apocalypse was meant to be a return to what made the first one of the best found footage films I’ve seen. Confined spaces. Zombies. Ridiculous weapons to fight off said zombies.
Instead the mythology, set up in the first and second films, has gone a bit weird and off the rails. The film itself lacked any horror or scares. Action was pretty pitiful. The zombies weren’t even scary. Screaming, snarling messes. Everything you think will happen, does happen. The plot has officially been lost with the [REC] series.