Here is the full list of all 24 Crime Secrets: Crimson Lily achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Make an antidote.
Turn on the fire alarm.
Solve all Detective Mode scenes
Chill something out. Literally.
Release from bonds.
Make some hot drink.
Set something on fire.
Make a map.
Find a new hobby.
Find first Hidden Snowflake Symbol
Find a hidden passage.
Solve three puzzles without using Skip.
Find the first Origami piece
Find what’s "hidden."
Finish one hidden object scene without using Hint.
View three cutscenes without using Skip
Extinguish a fire
Solve a puzzle without using Skip.
Launch a firework
Solve your first Detective Mode scene
Smash some ice.
Finish all hidden object scenes without using Hint.
Find all nine Hidden Snowflake Symbols.
Find all the Origami