"Zanzibar" is the first episode of the fourth series of the British black comedy anthology television programme Inside No.

Written by Steve Pemberton and Reece Shearsmith, the episode was directed by David Kerr and was first shown on 2 January 2018, on BBC Two.

It stars Pemberton, Shearsmith, Rory Kinnear, Bill Paterson, Marcia Warren, Hattie Morahan, Kevin Eldon, Tanya Franks, Helen Monks and Jaygann Ayeh.

Prince Rico (Rory Kinnear), the heir to a kingdom, and his bodyguard, Henry (Reece Shearsmith), who plans to assassinate him, enter the 9th floor.

Alice (Marcia Warren), an old woman who suffers from memory problems, leaves and knocks on room 915, and Mr Green (Bill Paterson) answers the door.

Mr Green, planning suicide, opens his door and asks Colette for a bath plug.

Colette (Helen Monks) and Vince (Kevin Eldon), a hypnotist, enter the 9th floor.

She convinces Vince to make Amber fall in love with the next person she meets, and they enter her room.

Gus presents the leftovers by accident, while Fred and Colette carry a sleeping Vince out.

Alice screams and Mr Green comes out in anger, and realises that Gus and Rico are his twin sons.