I Married a Monster (1998)

In Blue Falls town, Nicholas 'Nick' David Farrell and Kelly Victoria Drummond will get married on the next day. While driving home late night, Nick stops his car since Kelly's dog is in the middle of the road. He runs after the dog and sees a weird bubble in the forest. On the next day, he arrives late at the wedding and seems to be absent-minded during the ceremony. In their honeymoon, they have some friction, but Kelly believes is caused because now they are married. Soon, Nick changes his behavior, and stops drinking, smoking and joking. When their best friends Steve and Linda decide to get married, Kelly asks Linda to postpone her marriage, but her friend does not agree. Kelly and Linda find that they are pregnant, but soon there is a tragedy and Kelly discovers what is happening in Blue Falls.