It stars Mohanlal in the title role, along with an ensemble cast of Shriya Saran, Vikramjeet Virk, Lakshmi Rai, Roma Asrani, Sanjjana, Abhishek Vinod, Riyaz Khan, Shankar Panicker, Lalu Alex and Jagathy Sreekumar.

However the film's music, songs, production values and technical aspects received praise.

He has at his beck and call a faithful array of female followers including his staff, friends and former girlfriends, who will do anything for him.

The film starts with a robbery carried out by four criminals and they decide their next target in a wedding hall.

The young criminals (Alexi, Salim, Arjun, Kiran) take some photos of their targeted rich persons and collect their details.

Suddenly Casanovva gets an idea and announces a new live romance reality show through the channel named FALL IN LOVE.

By this time, the TV show became popular and causes some problems to Ann Mary, the robbers and even Hanna.

During a meeting with Casanovva on the last day of his holiday in Dubai Sameera falls for him and believed his feelings for her is also real.

On the day, at A Big Fair in Dubai, Sameera wears a mask to give Casanovva a surprise.

He says to Hanna that the aim of the reality show was to make the robbers understand about the feeling of love.

He then captures the robbers and makes them explain that Sameera was not their gang member to public through the TV show.

Casanovva kills Alexi with a gun thereby avenging Sameera's death and surrenders to the police.

The event was attended by film personalities including Mohanlal, Vishnuvardhan, Jagathy Sreekumar, Lalu Alex, Arya, Arshad Warsi, Lakshmi Rai, Priyanka Nair, Priyadarshan, Sibi Malayil, Suresh Kumar, P. V. Gangadharan, Antony Perumbavoor, and the film unit members.

[8] It has been reported that Mohanlal is giving prime importance to another film, China Town, which is leading Casanovva to a delayed release.

[21][22] The film had a large opening, collecting ₹ 2 crore, thanks to the 1,000 first-day shows, the highest ever for a Malayalam movie.

[25][26] The soundtrack features four songs composed by Gopi Sundar, Alphons Joseph and Gowry Lekshmi, with lyrics by Gireesh Puthenchery, Vayalar Sarath Chandra Varma, Gowry Lekshmi, Rosshan and Sanjay.