Bad Biology (2008) is a Horror, Comedy film that follows driven by biological excess, a young man and woman search for sexual fulfillment, unaware of each other's existence. Unfortunately, they eventually meet, and the bonding of these two very unusual human beings ends in an explosive and ultimately over-the-top sexual experience, resulting in a truly god awful love story.... Currently, you can watch Bad Biology on YouTube TV, Philo, ARROW. Streaming availability may vary by country and platform over time. It has a user rating of 4.6 out of 10 from 147 votes. Fans of horror movies may also want to explore similar titles below.