Kamikaze

A mysterious apocalypse has wiped out almost all humankind. Vika and Sam, two lovers, are forced to flee from creepy survivors, watching them day and night. In the confusion, Vika and Sam are separated, and Vika ends up alone, finding herself in a completely normal looking setting, where everyone is healthy and everything is functioning. Vika comes to understand that one of the two universes she's living in is a product of her imagination, jumped-started by a traumatic event. What prompted Vika's inability to live in real time? And which universe is real?