There are 50 Trophies that can be collected.

Bronze

The Nightmares Have Just Begun
Conquer Stage 1.

Read All About It!
Get Justin out of his jam.

A New Look
Help Todd out of his trouble.

Mother Inferior
Help Archie work through hsi quandary.

Love is Patient, Love is Kind
Resolve Daniel's dilemma.

One Last Case
Help Morgan clean up his mess.

Play It Again, Vince…
Use the jukebox to change the music.

Text Junkie
Reply to at least 20 text messages by the end of the final day.

Welcome to the Colosseum
Unlock the Colosseum mode.

Put It to the Limit!
Push 5 blocks at once. (Golden Playhouse)

Have an Ice Day
Slide an Ice Block 5 or more blocks. (Golden Playhouse)

Bomberlamb
Hit 15 blocks with a single explosion. (Golden Playhouse)

Sake Sensei
Listen to all the sake sound bites.

Beer Baron
Listen to all the beer factoids.

Cocktail Connoisseur
Listen to all the cocktail trivia.

Whisky Wiseman
Listen to all the whisky minutiae.

You Don't Have To Go Home…
Stay in the bar until all the other customers leave.

Babel's Calling
Unlock the Altar by earning 1 Gold Prize on Normal or Hard.

Altar Conquered!
Complete Stage 1 of Babel.

3-Star Man
Unlock Menhir by earning 3 Gold Prizes on Normal or Hard.

Menhir Conquered!
Complete Stage 2 of Babel.

5-Star Man
Unlock the Obelisk by earning 5 Gold Prizes on Normal or Hard.

Obelisk Conquered!
Complete Stage 3 of Babel.

Past a Heap of Puzzles
Beat Stage 64 of Rapunzel.

Silver

Everyday Hero
Help everyone out of their predicaments.

I Can Fly!
Jump on a Spring Block 3 times in a row. (Golden Playhouse)

Take Your Time
Move a Dark Block 10 times in a row. (Golden Playhouse)

Gold

Dreams Come True
View all of the endings.

Platinum

Cheers To You!
Unlock all other Trophies.

19 Secret

http://www.ps3trophies.com/forums/ps3-trophy-news/65445-catherine-trophy-list.html