Love is unconditional. But to what extent is it fair to let it become your life's purpose when the same love is unrequited?

Between the lines delves into the forbidden love story of Naitik Sen, an ambitious, perfectionist boy next door who falls in love with Ishika Khanna, his engaged senior colleague. They develop a deep connection through anonymous emails until Ishika's fiancé disappears. Naitik's life takes a turn thereafter when he ends up behind bars. Years later, a private investigator unravels the truth, exploring the fine lines between devotion and obsession and the love that remained between the lines. The story navigates emotional turmoil and the pursuit of unconditional love, questioning if Naitik can protect his love or succumb to the twists of fate.