a movie about a drug that makes you see big birds

Five years after an ominous unseen presence drives most of society to suicide, a survivor and her two children make a desperate bid to reach safety.

After a mysterious force decimates the world’s population, Sebastian must navigate his own survival journey through the desolate streets of Barcelona. As he forms uneasy alliances with other survivors and they try to escape the city, an unexpected and even more sinister threat grows.