Becky continues to live with her mother while working as a temp. She frequently compares herself to the seemingly perfect lives depicted on Instagram, particularly obsessed with Chloe's (Gilbert)'s account. When Chloe dies suddenly, Becky's need to uncover the truth forces her to assume an alter-ego and infiltrate Chloe's circle of close friends through Sasha. Through this role, she becomes a powerful and captivating character named "Sasha," blending reality and fantasy until it threatens her identity.
A sudden tragedy pulls Becky into Chloe's world in a way she never imagined.