Oktapodi is, stripped down, a story about two lovestruck octopuses, a pink one and an orange one (the title seems to be the Greek word for "octopus"), as well as a cook. It takes place in a small Greek village by the sea during the day, although the camera starts rolling in the sea.
That's where the two octopuses are captured. The pink one is taken away by the cook, and the orange octopus chases after him; if it's not clear already, it's a conflict between the octopuses and the stubborn cook. I think the story arrives at its climax when the two octopuses unite and attempt to escape to the sea together. Yet, right when the cook crashes into the sea and the octopuses stop for a breather, a seagull attacks the orange octopus and takes IT away. The irony is clear here.
The two octopuses are a symbol of strong love, which sets up a premise for the orange octopus' gallant pursuit of the cook, as well as for the pink one's makeshift catapult. I think the theme/motif was, similarly, "Love conquers all".
