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.
Find all nine Hidden Snowflake Symbols.
Find all the Origami
Make an antidote.
Turn on the fire alarm.
Solve all Detective Mode scenes
Chill something out. Literally.
Release from bonds.
Make some hot drink.
Finish all hidden object scenes without using Hint.
Set something on fire.
Make a map.
Find a new hobby.
Finish one hidden object scene without using Hint.
Find a hidden passage.
Solve three puzzles without using Skip.
Find what’s "hidden."
View three cutscenes without using Skip
Extinguish a fire
Launch a firework
Solve your first Detective Mode scene
Find first Hidden Snowflake Symbol
Smash some ice.
Solve a puzzle without using Skip.
Find the first Origami piece