Director: A. R. Murugadoss
Cast: Mahesh Babu as Shiva, S. J. Suryah as Bhairavudu, Rakul Preet Singh as Charlie, Bharat as Bhairavudu's brother, R. J. Balaji as Vinay, Priyadarshi Pulikonda as Madhu, Master Sanjay as young Bhairavudu, Jayaprakash as Shiva's father, Dheepa Ramanujam as Shiva's mother, and Himaja as Constable Renuka.
Shiva, an officer in the Intelligence Bureau, spies on people's calls and messages to help them if needed using a software he developed. The software can be used to listen to the needy by tracking their phones. On the night of March 16th, he listens to a lady named Charlie talking about her wish on getting 98% in her exams to get a USA Scholarship with her friend. In order to do that, she decides to get concentration by knowing a guy. Shiva goes and follows her and Charlie starts to fall in love but Shiva does not as his main focus is to help people.
On the night of April 28th, he listens to a young girl asking her friend for help as she is alone in her house and scared because there is no current in her house whilst everyone else on her street does.She fears that she is haunted by a ghost. Shiva sends his friend and a newly recruited police constable, Renuka, to help the girl. However the next day, a news channel declares that the two are killed. Shiva goes to the site and finds that it's a brutal murder. To know who murdered them, he sets out to spy the girl's chats and whereabouts.
He finds that a guy followed her at a cafe. Through technology, he finds someone who knows the guy. He then travels to the village where the guy grew up from, through the person who knew the guy. Will Shiva find the murderer and avenge his friend, and at what personal cost form the rest of the story.
Spyder received largely negative reviews. Despite being one of the highest grossing Telugu films of all time, it lost huge amounts of money. Performances of Mahesh Babu and S. J. Suryah are praised as intense and authentic. SPYder (Tamil) also released simultaneously. SPYder Malayalam dubbed version is released on the same day.