Q:Build a movie plot around this: Who were the letters written by? Alex's late wife
A:
In suburban Boston, a young woman (Julianne Hough) leaves her house after being shown in possession of a bloody knife. She is shown moments later buying a bus ticket, her hair now cropped and bleached, and stops at a small town called Southport, North Carolina. At the general store, she introduces herself as 'Katie'. After acquiring a job as a waitress and buying a small house on the edge of town, Katie befriends her next door neighbor, Jo (Cobie Smulders) and meets Alex Wheatley, (Josh Duhamel), the manager of a local convenience store, and his two children, Lexie and Josh. Alex's wife tragically died of cancer a few years prior.Alex immediately takes a liking to Katie, doing small helpful things, such as leaving an old bicycle at her house. They go on a 'family' trip to the beach, and Alex asks her to go canoeing with him, after which, they fell in love with each other. Lexie immediately accepts Katie, while Josh is initially resistant, believing Katie to be his late mother's replacement, but eventually accepts her as well.Meanwhile, Kevin Tierney (David Lyons), a Boston police officer, searches for Katie and, using his authority as a police officer, sends out reports saying that she is a wanted murderer. Upon seeing her picture in the police station, Alex confronts Katie and becomes angry that she didn't trust him enough to even tell him her real name, Erin. The picture flashes to Kevin's boss confronting him at work, pointing out he always carries a water bottle that turns out to be filled with vodka, and reveals that Erin was Kevin's wife. Erin/Katie was an abused wife of an alcoholic and sociopath police officer whom she left after he physically beat her a few too many times.Directly afterward, Katie is shown packing while talking angrily with Jo. Alex drives over to Katie's house to talk to her, only to discover that she left. He drives to the nearest ferry and admits he's fallen in love with her and promises to protect her no matter what. Initially, Katie wants to flee but then she decides to stay in...