Each Benoit Blanc film takes place in a different season and classic murder mystery setting.

Knives Out: Autumn in a country house

Glass Onion: Summer on a private island

Wake up Dead Man: Spring in a small town

So the next film in the cycle needs to be set in winter on a mode of transportation.

train train train train train tra-

“Well now, I have reached the absolute end of my tether with these venomous interlopers slitherin’ about this forsaken aircraft.”