Hi Guys

What ya reckon on this hand can we fold pre, maniac utg opens and 3bet by reg. Im thinking calling the maniac all day and hoping reg folds.
https://www.weaktight.com/h/578be75ad39043944b8b461d?simple=1
** Game ID 6113063725 Version:5 starting - 2016-07-17 20:03:07
** Christoffer - ?20 Max [Hold'em] (0.10|0.20 NL - ? Cash Game seats:6 badbeat ) Real Money
- elihanavi sitting in seat 1 with ?10.74 at end ?22.98
- vincenzo85 sitting in seat 2 with ?20.34 at end ?9.60
- PiYaNoNiSt sitting in seat 3 with ?18.60 at end ?18.60
- shetland sitting in seat 4 with ?25.99 at end ?24.19 [Dealer]
- PokerAmigo77 sitting in seat 5 with ?20.00 at end ?19.90
- SkifUA sitting in seat 6 with ?5.70 at end ?5.50
PokerAmigo77 posted the small blind - ?0.10
SkifUA posted the big blind - ?0.20
** Dealing card to shetland: J of h, J of c
elihanavi raised - ?0.60
vincenzo85 raised - ?1.80
PiYaNoNiSt folded
shetland called - ?1.80
PokerAmigo77 folded
SkifUA folded
elihanavi called - ?1.20
** Dealing the flop: 6 of s, 5 of d, 7 of d
elihanavi went all-in - ?8.94
vincenzo85 went all-in - ?18.54
shetland folded
vincenzo85 returned - ?9.60
elihanavi shows: 8 of d, K of d
vincenzo85 shows: K of c, K of h
** Dealing the turn: 2 of d
** Dealing the river: 6 of c
elihanavi wins ?22.98 from the main pot
End of game 6113063725