| Director | Kunchacko, Preethi Panikkar |
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Rosy, an orphan raised in a supportive household, works as a club dancer at a high-end hotel. One evening, after her performance, she goes to hotel room 405 where she inadvertently witnesses the cold-blooded murder of her cab driver, Salim, at the hands of Johny, a ruthless and influential criminal businessman. Fearing for her life, Rosy flees the scene and seeks help from Circle Inspector Rana, who realizes she is the crucial eyewitness needed to finally bring Johny to justice.
To safeguard her from Johny’s dangerous henchmen, CI Rana arranges for Rosy to go into hiding at St. Theressa’s Convent, where she is disguised as a novice nun named Sister Mary Angelina under the watchful eye of Mother Superior Alphonsa. Unaccustomed to strict spiritual discipline, Rosy initially struggles to fit in, but her vibrant personality and musical background soon energize the convent choir, winning over the other sisters.
Meanwhile, Johny relentlessly pursues every lead to locate the witness. He eventually tracks Rosy down to the convent and infiltrates the premises under cover of night to silence her. However, the brave nuns unite to protect Rosy, fighting off the intruder with brooms and wooden sticks. CI Rana arrives on the scene and subdues Johny in a dramatic confrontation during a heavy downpour, placing him under arrest. With her safety secured and justice served, Rosy expresses heartfelt gratitude to the sisters before stepping forward to testify.