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.
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 a hidden passage.
Solve three puzzles without using Skip.
Find what’s "hidden."
Finish one hidden object scene without using Hint.
View three cutscenes without using Skip
Extinguish a fire
Launch a firework
Find first Hidden Snowflake Symbol
Solve your first Detective Mode scene
Smash some ice.
Solve a puzzle without using Skip.
Find the first Origami piece
Finish all hidden object scenes without using Hint.
Find all nine Hidden Snowflake Symbols.
Find all the Origami
Turn on the fire alarm.
Make an antidote.