Aaptharakshaka (English: Dearest Savior) is a 2010 Kannada horror film directed by P. Vasu and written by V. R. Bhaskar.

The movie was dubbed in Telugu as Raja Vijaya Rajendra Bahadur (Nagavalli - Return of Chandramukhi) in Hindi as Sab Ka Rakhwala under the production of Sumeet Arts and in Bengali as Amar Rakshak.

The story starts off with an ancient painting of Nagavalli (Vimala Raman) floating away to distant places, where it finally comes into the hands of a village painter.

The painting is then sold off to a dance competition, which was distributed as a prize to Bharatanatyam dancer Saraswathi (Lakshmi Gopalaswamy), her husband, and her family.

Meanwhile, on the engagement day of Gowri (Sandhya), one of her friends fainted after encountering a 30-foot snake, and the bridegroom had run away from the family house fearing something.

The family members are psychologically affected by the presence of Nagavalli's painting, and things have not been going well in the house, so they decide to contact Acharya Ramchandra Shastry (Avinash), an astrologer cum sage.

The father of the three daughters tells Sastry that Saraswathi and her husband met with a fatal accident and died, after the Bharatnatyam competition.

Suspecting each and every person in the family, Vijay starts to investigate everything, so he goes to the library to read a book based on Vijaya Rajendra Bahadur's life and further information on Nagavalli too.

The investigation also takes back to around 125 years when Raja Vijaya Rajendra Bahadur (Vishnuvardhan) used to live and how his enmity with Nagavalli has been going on since centuries.

So Vijay goes to the fort where the Bahadur is, and at the time, Sastry performs a pooja to try to bring Nagavalli out of Saraswathi's body.

Vijay, knowing that Gowri would have definitely sought revenge, goes to the fort where Bahadur almost gets burned to death, but he survives when it starts to rain.

[5] Bangalore Mirror wrote "P Vasu deserves all the praise for deft handling of an interesting plot he has conceived.

Gurukiran's music and PKH Doss' camera work complement the film that is a must watch".

[6] BS Srivani of Deccan Herald wrote "The bevy of beauties - Vimala Raman, Lakshmi Gopalswamy and Sandhya- together provide perfect support to Vishnu.