Monster-in-Law (2005) is a Romance, Comedy film that follows office temp Charlotte Cantilini thinks she's found Mr. Right when she starts dating gorgeous surgeon Dr. Kevin Fields. But there's a problem standing in the way of everlasting bliss: Kevin's overbearing and controlling mother, Viola. Fearing she'll lose her son's affections forever, Viola decides to break up the happy couple by becoming the world's worst mother-in-law. Currently, you can watch Monster-in-Law on HBO Max Amazon Channel, YouTube TV, Cinemax Amazon Channel, HBO Max. Streaming availability may vary by country and platform over time. It has a user rating of 6.2 out of 10 from 1,775 votes. Fans of romance movies may also want to explore similar titles below.