You live in Hamlin, a town infested by rats. The easiest way to get the rats out of your house is to send them to your neighbors' house. Whenever too many rats are jammed into a house, its occupants get desperate and move out! The player who can best keep the rats out of his house wins!
On your turn, play 2 Action cards on different characters (either rats the Pied Piper). If it's the second Action card played on a charater, move the matching figurine according to the Action cards and replace the character card.
Whenever a rat figurine passes a house, that house's rat tracker moves up 1. When the Pied Piper passes a house, he lures rats out of the house and that house's rat tracker moves down 1. Whoever has the fewest rats in his house at the end of the game is the winner.
But beware: if your rat tracker reaches the roof of your house, you immediately flee your rat-infested house and are out of the game!