Here is the full list of all 20 Noir Chronicles: City of Crime achievements.
Complete a Hidden Object Puzzle without a mistake.
Avenge Barbara's death.
Finish all the Minigames without skipping them.
Collect all footprint Collectibles.
Find all Collectibles.
Enter the bank.
Find out the truth.
Rescue Mortimer.
Win a game of cards.
Escape from prison.
Complete 5 Minigames without skipping them.
Confront Victor.
Finish 3 Hidden Object Puzzles in less than 10 minutes.
Complete a Hidden Object Puzzle in less than a minute.
Finish 3 Hidden Object Puzzles without a Hint.
Convince Conrad of your innocence.
Complete a Minigame in less than a minute.
Complete a Hidden Object Puzzle without a Hint.
Find 3 Hidden Objects within 3 seconds.
Find one Collectible.