The hardest part of death is learning how to live.

The last thing Alice expects to see at her husband's graveside on his birthday is a giant, talking frog. On closer inspection, it's a grown man dressed as Kermit.

Turns out Alice's husband is buried next to Ben's older brother Harry, who-as a parting practical joke in his will-insisted that Ben visit his grave each year, on this specific day, dressed in an as-yet-undisclosed pageant of embarrassing fancy dress.

With little but their grief and this one day in common, Alice and Ben form a very special, very strange friendship, meeting just once a year: same day, same time, same place-different silly costume. As the years pass and grief alters, can their unique bond help them cope with the hardest part of death: life?