Nothing human is alien to a computer. Anyway, not in the near future, a pleasant world photographed in warm hues for a change. A world in which people are living at cross purposes seemingly carefree. One of them is Theodore, a writer who composes loving letters to order. When the lonely Theodore falls in love with the flirty operating system of his computer, which possesses self-awareness and speaks with the agreeable voice of Scarlett Johansson, he becomes profoundly confused.