Five friends have a party to ride out a hurricane in Miami. As if it were not bad enough being trapped inside the house while natural forces wreak havoc outside, something is trapped inside with them. The storm is the least of their worries trying to make it through the night.

A guy without many everyday worries finds a door floating in the ocean and soon suspects he is being followed. He discovers that it is himself that is following him and that the door allows him to travel back in time. He sets about trying to improve his life by changing his past; leaving himself notes all while trying to track down and correct the corrections his future self keeps trying to make.