Rangoon Radha, Sivaji Ganesan plays a rich hypocrite, a wolf in sheep’s clothing, married to a loving, dutiful wife (Bhanumathi). He covets his sister-in-law (Rajam) and manipulates his wife’s mind to make her believe that she is going insane. Instead of seeking medical advice, he gets a witch doctor to exorcise the evil spirit that is believed to possess her. Because of her undying love for her husband, she suffers all the torture, mental and physical, and even puts up with his marrying her sister (Rajam).
Vani is kidnapped by aliens who need her to teach music and dance to their inhabitants. Mohan, her lover, chances upon the alien left behind on Earth and manages to make his way to the alien planet.
'Maruthanaatu Ilavarasi' is a well-woven story about a king (Veerappa) with two wives (one played by Saraswathi and the other does not appear in the movie!) and an evil-minded Minister (Chakrapani) whose sister is the younger queen. The two become pregnant and the evil genius persuades the king to believe that the senior queen poisoned the junior queen out of sheer jealousy; the king believes but takes no action. The frustrated Minister tries to eliminate the pregnant queen, but she is saved by a courtier whom the Minister kills. The pregnant queen escapes many trials and gives birth to a son (MGR). He grows up and meets a young woman (Janaki) and her friend (Nagaratnam) and falls in love, unaware that she is a princess. Their love grows, but when he comes to know that she is a princess, he distances himself from her. After many trials, the two come together and live happily.
