The film pitch proposes a psychological thriller called "Lifeline" that follows a woman named Belle whose normal life is disrupted by a stalker. As she investigates further, Belle discovers there is another person manipulating timelines and causing bad things to happen to her and other victims. Belle works to prove an innocent man's alibi and track down the real antagonist threatening her life. In the end, Belle and other victims destroy the antagonist's evidence and timelines, restoring a new sense of equilibrium. The film would feature everyday locations like houses and streets that take on increased significance as the plot develops.