It's sort of a mixture of the Knives Out formula and your basic Columbo episode. You see the murder happen just like on Columbo, but then there's a short Knives Out-style flashback to show us that Lyonne's character actually just showed up recently and already knew at least one of the involved parties.

Natasha has a tell when someone is lying she fells something is off so you even see people she knows indirectly not replying, asking questions instead of a reply etc