In Ghost House Inn is a 2010 Indian Malayalam-language horror comedy film written, directed, and co-produced by Lal. Starring Mukesh, Siddique, Jagadish and Ashokan, the film is a sequel to 2 Harihar Nagar (2009) and In Harihar Nagar (1990). In the film, Thomas Kutty buys a haunted bungalow with the intent of converting it to a resort and convinces his friends to stay with him. The trouble begins when they actually see the ghost of the mistress who was killed seventy years ago.

Plot

Seventy years ago, within the eerie confines of Dorothy Bungalow, a sinister act unfolded. Dorothy, consumed by vengeance, mercilessly murdered her husband, Fernandez, and his mistress, Grace. With cold precision, she placed their lifeless bodies into a blood-drenched trunk before eliminating her unsuspecting driver. Disposing of both the trunk and the driver's corpse into the depths of a well hidden within the lower right chamber of the house, she vanished, leaving the mansion shrouded in an air of malevolence.