In 1920s England, a gay novelist and his psychiatric nurse form an unlikely friendship over a series of doctor-prescribed "dates." Through their conversations, he tells her the story of his relationship with an old friend which spiraled out of control when they turned to a risky procedure to cure themselves of their forbidden feelings for one another.
The animals from the African jungle fall through a time portal that the aliens forgot to close behind them. To return to the future, friends will need the help of dinosaurs. But the ancient lizards have their own problems. After all, their world is about to be invaded by cave aliens armed with clubs.