In a Tidal Wave of Mystery is the debut studio album of American indie pop duo Capital Cities, released on June 4, 2013, under Capitol Records.

[5] Capitol Records serviced the single to United States modern rock radio over a year later on November 27, 2012,[6] and it topped the Billboard Alternative Songs chart.

[7] It subsequently became the duo's breakout hit, peaking at number eight on the Billboard Hot 100 and reaching the top ten of numerous mainstream charts internationally.

Matt Collar of AllMusic wrote a positive review of In a Tidal Wave of Mystery, describing it as an "infectious mix of synth-heavy dance pop" and drawing comparisons to American rock group MGMT and Italian musician Giorgio Moroder.

"[14] Chuck Arnold of People wrote: "With its buoyant synth-pop sheen, 'Safe and Sound,' the hit single that opens this disc, is bound to be one of the songs of summer.