Tunnel was started with no expectations and I really enjoyed it. It had its own twist, suspense and crime. The bromance part from hate to caring relationship was really good. Music played at some scenes were amazing. This will be my second time travel drama. Cast played their roles well. Usually I get bored during second half but here I was glued from start to end. The ending could have been done a bit more better and there was some repetitive statements which could have been avoided. Otherwise, I loved Tunnel.