Suzette and Jack form a very nice and rather well-matched couple. The latter is the partner of the new clown Teddy who seems to please the young lady a lot.
Medical student Antti Ahonen, who is fighting tuberculosis, finds himself in the middle of a love triangle with his friend Heikki Huhtamäki and his crush Helmi Hirvinen.
A lover selflessly steps aside to let her guy go so he can hook up with a rich dame. Sadly, the goodie good girl ends up marrying some scum bag gambler.
After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.