It's Josh's birthday, so Kate and Owen decide to organise him a fancy-dress party. Josh is not keen, but he relents in the hope that it might give him a chance with Lucy, who lives upstairs and is so nice she would make Mother Teresa look like Katie Hopkins. Meanwhile, Kate meets her ex-boyfriend's new girlfriend Cath, who is obsessed with YouTube videos and will not be deterred by either lack of interest or buffering. And, inevitably, Geoff pops by the party wearing a suitably impractical costume.

Josh gets dumped so Owen takes him on a double date with a couple of voracious cougars.

Josh, Owen and Kate head to the local curry house and bump into some old acquaintances from university. As the night progresses, rumour and intrigue come to the fore and the trio discover that some secrets are best left unrevealed.