Martin Scorsese film in which Leonardo DiCaprio plays a delusional patient at the title institution.
One character in this film is introduced while Mahler's Piano Quartet in A Minor is playing and comments on another character's "excellent defense mechanisms". The dialogue in this film includes the recurring question, "Why are you all wet, baby?". This film's protagonist reveals that he is searching for his wife's murderer, the arsonist Andrew Laeddis, while investigating the disappearance of Rachel Solando, who supposedly drowned her three children. For 10 points, name this 2010 Martin Scorsese film in which Leonardo DiCaprio plays a delusional patient at the title institution.
One character in this film is introduced while Mahler's Piano Quartet in A Minor is playing and comments on another character's "excellent defense mechanisms".
{Shutter Island}