The Party to End All Parties

Author: Roth, Lucy

Modern & contemporary fiction (post c 1945)

Published on 9 April 2026 by HarperCollins Publishers (AVON, a division of HarperCollins Publishers Ltd) in the United Kingdom.

Paperback | 352 pages
197 x 130 x 24 | 240g

On a comedown from one of their infamous parties, the dysfunctional Morland siblings find a guest has been murdered… and hide the body in their wine cellar.

This locked-room crime thriller is a deliciously dark descent into privilege and paranoia, perfect for fans of Ruth Ware, Lucy Foley, and Lisa Jewell.

Four entitled siblings with loyalties they'd die for, and secrets they'd kill for

The disgustingly rich and grossly dysfunctional Morland siblings are throwing one of their infamous parties, before it's decided which one of them will take over their ancestral family home. Despite their rivalry, Kassie, Caitlin, Paul and Steven are determined it's going to be a night to remember.

But by the morning, one of their guests isn't just hungover: they're dead.

The Morlands each have a motive, and they all have dubious morals. But which of them is actually a murderer?

While all of them suspect the others, the siblings face a choice: call the police (but risk investigation into their other illegal dealings) or work together to hide the body in the wine cellar. They choose badly.

Unfortunately, teamwork doesn't come naturally to this family. With Grandma on her way and the inheritance decision looming, old traumas re-surface and new threats start to claw their way out of the shadows…

Who will survive until the afterparty?