Here is the full list of all 20 Late Shift achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Fall for the bluff
Watch all seven endings
Reject the offer
Convince Parr it's a fake
Watch four endings
Go home alone
Don't cross the line
Find all main chapters
Pull the trigger
Don't give in
Enter the wrong code
Go to the Tchois
The key to friendship
Don't fight
Take the high road
Accept the offer
More than just friends?
Defeat the odds
Split the share 50/50
What are the chances?