DxDetective case

Frost Building Inside a Freezer

Murtek ยท Fictional learning case

Source organizations: U.S. government.

Start case

Case overview

Shelby Khan reaches into the freezer for a bag of vegetables and finds a new layer of frost along one side. Omar thinks it is just the aftermath of a busy weekend: people came over, food was shifted around, and the kitchen never quite caught up. Shelby is not convinced. The frost was not there when she stocked the shelves two days earlier. She starts noticing where it gathers, which packages are nearby, and whether the same change shows up elsewhere in the kitchen. Omar keeps offering a quick fix. Shelby wants to know what changed first. Their small disagreement becomes a useful question: is this a one-time household mess, or a repeatable pattern that deserves a more deliberate response? The case begins before either answer is certain.

Characters

  • Shelby Khan household resident
  • Omar Khan household resident
Difficulty
Intro
Estimated time
7 min
Rounds
1
Action options
6
Diagnostic options
3
Access
Free

Categories

household observation home context pattern reasoning

Skill focus

recent-context gathering repeated observation communication judgment proportionate next action

Diagnostic option types

timing and recent-use questions package-placement observations household-context comparisons