In each Q case you try to solve a mystery case with 32 clues.

Play in turns, one player at a time, until all cards have been revealed or discarded.
During your turn, each player must perform one of the following actions:
A) Reveal information:
Choose a card from your hand and place it on the table, so all players can read or see the entire information.
We recommend you read out loud all shared info when you place it on the table. If you play a clue that happens to be irrelevant to the case, you’ll lose points at the end of the game, but be careful! Some clues are vital to resolve the case.

You can share and expose your theories at any moment and talk about the cards you have in your hand but you cannot show them to the other players and you may only read out loud the words written in bold or the text framed inside an image:

At the end of the game, when all clue cards have been revealed or discarded, you must check carefully all the available information and prepare a theory of what happened,working all together.
Then, open the questionnaire and answer all questions. During this phase of the game, you can speak freely about your discarded cards, or the information you remember of them. Each right answer will add two points.

In Q: Death on 4th of July, a mysterious death happens in Rockvalley's mansion:

"EMERGENCY
911, Emergency, how may I help you?

GARDENER
Yes, hello. We’ve found a body in the Rockvalley’s property.

EMERGENCY
May I have the address, please?

GARDENER
It’s here, in Rockvalley’s estate.

EMERGENCY
Rockvalley’s Manor?

GARDENER
Yes, yes. I found it hidden in the bushes, in the middle of the grove.

EMERGENCY
Have you checked for vital signs?

GARDENER
I can assure you it’s not necessary, this guy is as dead as he can be.

EMERGENCY
Do you know the victim?

GARDENER
I don’t know, it’s a white male. He isn’t anyone from the family though. Mr and Mrs Rockvalley are safe as well as the children.

EMERGENCY
Whom am I speaking with?

GARDENER
I’m William Greggs, gardener and keeper of the estate grounds.

EMERGENCY
Very well. There’s a police car already on your way.

GARDENER
Thank you."

—description from the publisher

Decktective: The Gaze of the Ghost