Книга From Point “A”. Book script for a movie about time travel

A young, talented girl named Kira witnessed a beam of light streaming from the ceiling of her studio during the recording of her song. Kira’s new song turned out to be a portal between the past and the future. Kira invites her friend Alexey to peer into the future. Upon seeing negative scenarios unfolding, Kira and Alexey decide to save humanity and attempt to find and correct the mistakes.