The "wolfpack" (Bradley Cooper, Ed Helms and Zach Galifianakis) are back. And once again, they've been drugged into memory-erasing unconsciousness. After jetting off to Thailand for another impending wedding, the trio wake up with another raunchy mystery on their hands. This one involves tattoos, monkeys and Buddhist monks. The film has its moments, but feels like a retread of the first. 102 minutes R.