When a mysterious and beautiful young woman named Katie appears in the small American town of Southport, her sudden arrival raises questions about her past. Despite her determination to avoid forming personal ties, she becomes drawn into two reluctant relationships: one with Alex, a store owner; and another with her neighbour, Jo. Katie begins to let down her guard, putting down roots in the close-knit community. But even as Katie falls in love, she's still haunted by the dark secret that set her on the journey to the sheltered oasis of Southport. Eventually, though, Katie realizes that a choice must be made between a life of transient safety and one of riskier rewards...and that in the darkest hour, love is the only true safe haven.