Katie Wilkinson's world turns upside down when her ideal man vanishes, leaving behind Suzanne's diary addressed to her baby son, Nicholas. The diary unveils Suzanne's heartfelt narrative of love and motherhood, echoing Katie's recent romance. As she pores over the pages, Katie's heart races—Suzanne's beloved is her own missing partner. Caught between fear and hope, Katie grapples with the truth about her love's disappearance and the uncertain fate of their shared future.