The story revolves around Henry DeTamble (played by Eric Bana) and Clare Abshire (played by Rachel McAdams). Henry has a rare genetic disorder that causes him to involuntarily time travel. He unpredictably leaps through different periods of his own life, appearing in various stages of his past and future.

Clare, who is Henry’s wife, meets him when she is a young woman, but for Henry, their relationship spans his entire lifetime. Clare first encounters Henry when she is a child and he is an older version of himself. Their relationship grows over the years as Clare learns to cope with Henry’s unpredictable disappearances and the challenges of loving someone who is constantly shifting through time.

The narrative explores the impact of Henry’s time travel on their relationship, including the emotional highs and lows, and how Clare manages the complexities of loving someone who is never present in one place for long. The film delves into the effects of time travel on their lives, their dreams, and their relationship.

As Henry’s time travel becomes more frequent and chaotic, Clare faces the possibility of losing him permanently. The story balances the romance with a poignant exploration of the consequences of time travel on love and personal identity.