I'll Be the Monster

'The White Lotus' meets 'My Sister, the Serial Killer'

A homicidal couple go on a luxury holiday to save their marriage, in this darkly funny and razor-sharp debut novel by rising star Sean Gilbert

'The White Lotus meets My Sister, the Serial Killer: I’ll Be The Monster is a menacingly funny, daring debut that deserves a spot at the top of every 2026 TBR pile. With humour so biting and unease this sun soaked, this brilliantly vile pager turner cements Sean Gilbert as a bold new voice in literary fiction' Lucy Rose, author of The Lamb

------------ 

A homicidal couple embarks on a luxury holiday to save their marriage.

After years of secrets and self-restraint, they’ve reached breaking point. But three days into the trip, they run into Benny, an acquaintance from their Cambridge days. And Benny is desperate to reminisce about a time – and a person – they would rather forget.

Darkly funny and razor-sharp, I’ll Be The Monster follows a dangerous game of cat and mouse as it plays out under the stifling heat of the Mediterranean sun. From a major new talent in literary fiction, this gripping debut is a love story about the worst people you know – and of what happens when a change of heart occurs too late.

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.