"The Girl in Room 105" by Chetan Bhagat is a thrilling and emotionally charged novel that blends romance, mystery, and social commentary. The story revolves around Keshav Rajpurohit, a former IIT student who is struggling to move on from his past relationship with Zara Lone, a Kashmiri Muslim. Despite their breakup four years ago, Keshav is unable to forget her and continues to dwell on their memories.

One night, on Zara's birthday, Keshav receives a drunken message from her and decides to visit her hostel room, 105, in a bid to rekindle their relationship. However, upon arriving, he discovers Zara's lifeless body, setting off a chain of events that propel him into a dangerous investigation to uncover the truth behind her murder.

With the help of his loyal friend Saurabh, Keshav dives into the mystery, navigating through a web of suspects, including Zara's family, friends, and ex-lovers. As he unravels secrets and confronts shocking revelations, Keshav is forced to confront his own biases and preconceptions.

Bhagat’s engaging writing style and relatable characters make "The Girl in Room 105" compelling. The novel explores themes of love, loss, and societal prejudices while keeping readers on the edge of their seats with its suspenseful plot twists and turns.