Save the Dog (1988)

Becky wants to become an actress After an audition for a dog food ad she has best chances to get the part but the day after her dog Petey becomes very ill She has to come up with 700 until 5 pm for the operation else Petey will be put to death Lacking only 70 she takes a job as messenger She needs only one delivery but her car breaks down and bad luck delays her again and again and again